After defeating Brandon and declining the offer to be a Frontier Brain. Ash sets off to travel through the far away land of Sinnoh. However once he gets there he meets up with Dawn, a local trainer from the region.

Here is a run-down of what happens:

  • Dawn from Sandgem Town travels to Twinleaf Town
  • Dawn gets her starter Pokémon, Piplup
  • Ash captures a Starly
  • Brock meets up with Ash with only Bonsly at his side
  • Ash loses Pikachu whom is later found and protected by Dawn
  • Ash finds Pikachu
  • Ash meets his new rival Paul
  • Ash captures a Turtwig
  • Ash meets up with Paul again, learning that Paul is still in his horrible ways
  • Brock captures a Croagunk
  • Dawn captures a Buneary
  • Dawn meets with her new rival Zoey and enters her first Contest
  • Dawn loses her first Pokémon Contest
  • Ash's Starly evolves into Staravia
  • Brock's Bonsly evolves into Sudowoodo
  • Ash meets up with the Oreburgh Gym Leader, Roark
  • Ash loses to Roark
  • Ash rechallenges Roark and wins the Coal Badge
  • Dawn captures a Pachirisu, releases it and then recaptures it
  • Dawn enters the Floaroma Contest, battling against her old friend and wins her first Ribbon
  • Ash & Co. Meet Cheryl, who is looking for Honey to place on trees
  • Cheryl's Burmy evolves into Mothim
  • Ash & Co. meet up with Gardenia
  • Ash battles Gardenia and loses
  • Ash & Co. find a Combee Hive & some Honey
  • Cheryl leaves the group
  • Brock wins a Dressup cotnest and gets an Egg
  • Dawn captures a Buizel
  • Ash & Co. meet Elite Four member Lucian
  • Ash defeats Garenia and gets a Forest Badge
  • Brock's Egg hatches into Happiny
  • Ash & co. meet Cynthia, the Champion of Sinnoh who goes on to defeat Paul
  • Dawn loses the Hearthome Contest
  • Ash, Brock, Dawn & Paul enter a Tag Battle Tournement
  • Paul releases Chimchar
  • Ash captures Chimchar
  • Paul's Elekid evolves into Electabuzz
  • James gives Cacnea to Gardenia
  • Ash & Dawn trade their Aipom & Buizel with eachother
  • Dawn's Aipom evolves into Ambipom
  • Dawn loses another Pokémon Contest
  • Paul captures a Gliscor
  • Ash captures a Gligar
  • Dawn challenges Maylene to a gym match and loses
  • Ash defeats Maylene and earns himself a Cobble Badge
  • Ash & Co. meet Hunter J again and a new Pokémon Ranger, Hajime
  • Jessie releases Dustox
  • May meets up with Ash & Co.
  • Dawn beats May and wins the Wallace Cup
  • Jessie Captures a Yanma
  • Jessie's Yanma evolves into Yanmega
  • Ash defeats Crasher Wake and earns himself the Fen Badge
  • Dawn captures a Swinub
  • Ash's Gligar evolves into Gliscor
  • Ash & Co. enter a Pokémon Summer School
  • Ash challenges Fantina and loses
  • Dawn wins the Celestic Town Pokémon Contest
  • Ash & Co. meet up with Cynthia and try to thwart Team Galactic's plans
  • Ash & co. meet up with Elite Four member Aaron and reunite him with his Beautifly
  • Ash & co. meet and join up with a new trainer; Barry
  • Ash defeats Fantina and earns himself the Relic Badge
  • Jessie earns her second ribbon
  • Ash & co. protect Canalave City from Darkrai with Cresselia's help
  • Dawn's Swinub evolves into Piloswine
  • Dawn's Piloswine evolves into Mamoswine
  • Ash defeats Byron and earns himself a Mine Badge
  • Ash & co. meet up with Barry and once again attempt to stop Team Galactic
  • Dawn wins the Akebi Town Contest and earns her fourth ribbon
  • Ash's Staravia evolves into Staraptor and wins a PokéRinger contest
  • Piplup chooses not to evolve
  • Dawn loses to Kenny in the Tatsuami Town Contest
  • Dawn leaves Ambipom with a legenday Ping-Pong trainer
  • Ash defeats Candice and earns the Icicle Badge
  • Ash & Co. meet with Brandon and Brandon defeats Paul
  • Paul defeats Ash in a battle
  • Brock sees Uxie
  • Ash & Co. return to Twinleaf Town for the Twinleaf Festival
  • Ash is defeated by Tower Tycoon Palmer
  • Ash & Co. meet with Lyra & Khoury
  • Dawn gets an egg that hatches into Cyndaquil
  • Khoury captures a Gible
  • Khoury's Totodile evolves into Croconaw
  • Lyra & Khoury leave
  • Ash & Co. face Team Galactic as they awaken Dialga & Palkia
  • Ash leaves Gliscor for training
  • Ash captures a Gible
  • Ash teaches Buizel Ice Punch
  • Dawn earns her final Sinnoh Ribbon
  • Ash's Monferno evolves into Infernape
  • Ash loses a battle against Elite Four member Flint
  • Ash's Grotle evolves into Torterra
  • Jessie gets her fifth ribbon
  • Dawn obtains a Togekiss
  • Dawn enters the Grand Festival
  • Kenny loses in the appeal round of the Grand Festival
  • Dawn defeats Ursula in the quarter final of the Grand Festival
  • Zoey beats Nando in the semi-final of the Grand Festival
  • Dawn beats Jessie in the semi-final of the Grand Festival
  • Zoey beats Dawn and wins the Grand Festival
  • Ash defeats Volkner and gets his final Sinnoh Badge
  • Ash's Cyndaquil evolves into Quilava
  • Ash defeats Nando in the Sinnoh League
  • Paul defeats Barry in the Sinnoh League
  • Ash defeats Paul in the Sinnoh League
  • Ash is defeated by Tobias in the Sinnoh League
  • Brock's Happiny evolves into Chansey
  • Ash, Brock & Dawn go their seperate ways
  • Here is the list of Episodes and the Guides (when they are done):

    # -English Episode Name- -Jap. Episode Name- Pics
    469 Following a Maiden Voyage! Begin! From Twinleaf Town to Sandgem Town! Pics
    470 Two Degrees of Seperation! Find Pikachu! Route 202! Pics
    471 When Pokémon Worlds Collide! Rival Battle! 3 VS 3! Pics
    472 Dawn of a New Era Piplup VS Budew! Dawn's First Battle!! Pics
    473 Gettin' Twiggy With It! Get Turtwig! Pics
    474 Different Strokes for Different Blokes Forest of Hesitation! Paul Again!! Pics
    475 Like It or Lup It Piplup Hangs On!! Pics
    476 Gymbaliar Croagunk & The Mysterious Gym!! Pics
    477 Setting the World on its Buneary Lets Play With Buneary! Pics
    478 Not On My Watch Ya Don't! Pokétch is Unavailable?!! Pics
    479 Mounting a Coordinator Assault Dawn's Contest Debut! Pics
    480 Arrival of a Rival Contest Battle! Rival Confrontation!! Pics
    481 A Staravia Is Born Good Luck Starly!! Pics
    482 Leave it to Brocko! Leave it to Brock!! Pics
    483 A Shape of Things To Come Oreburgh Gym! Paul VS Roark!! Pics
    484 A Gruff Act To Follow Cranidos VS Pikachu! Pics
    485 Wild in the Streets Big Charge of Ancient Pokémon! Pics
    486 O'er the Rampardos We Watched! Oreburgh Gym Again! Deciding Match Agaisnt Rampardos! Pics
    487 Twice Smitten, Once Shy! I Got a Pachirisu! Is That Ok?? Pics
    488 Mutiny in the Bounty! Pokémon Hunter J! Pics
    489 Ya See We Want an Evolution! The Strongest Magikarp & The Most Beautiful Feebas! Pics
    490 Borrowing on Bad Faith! Pachirisu VS Aipom! Pokémon Contest! Pics
    491 Faced with Steelix Determination! Roaring Steelix! Protect the Bidoof Village!! Pics
    492 Cooking up a Great Story! Showdown! Ash VS Pikachu! Pics
    493 Oh Do You Know the Poffin Plan! The Gifted Roserade & The Flower Legend! Pics
    494 Getting the Pre-Contest Titters! Pokémon Contest! Floaroma Conference! Pics
    495 Setting a Not-So-Old Score! Deciding Match! Piplup VS Prinplup!! Pics
    496 Drifloon in the Wind Drifloon and the North Wind Messenger! Pics
    497 The Champ Twins! Ash & Dawn! Saved By Double Battle? Pics
    498 Some Enchanted Sweetening! Eterna Forest! The Great Burmy Evolution Plan! Pics
    499 The Grass Type Is Always Greener Turtwig VS Turtwig! Speed Showdown! Pics
    500 An Angry Combeenation! Vespiquen of the Amber Castle! Pics
    501 All Dressed Up With Somewhere To Go! It's Love! Pokémon Transformation Convention!! Pics
    502 Buizel Your Way Out Of This! Buizel! Road to Strength! Pics
    503 An Elite Meet & Greet! Elite Four Lucian & Bronzong! Pics
    504 The Secret Sphere of Influence The Sinnoh Space-Time Legend! Pics
    505 A Grass Menagerie Eterna Gym! VS Gardenia! Pics
    506 One Big Happiny Family Explosive Birth! Cycle Road! Pics
    507 Steamboat Willies Pikachu's In Charge! Pics
    508 Top-Down Training! Champion Cynthia Appears! Pics
    509 A Stand-Up Sit-Down Dawn, Zoey & A Double Performance! Pics
    510 The Electrike Company Electrike Practice Centre! Pics
    511 Malice in Wonderland! Mismagius! Escape From Nightmare! Pics
    512 Mass Hip-Po-Sis Save The Stray Hippopotas! Pics
    513 Ill-Will Hunting Hunter J Again! Protect Shieldon! Pics
    514 A-Maze-ing Race Maze Shuffle! Everybody Hustle! Pics
    515 Sandshrew's Locker Mira, Abra & The Bottom of the Water! Pics
    516 Not Aired Ash & Dawn! Head For A New Adventure! Pics
    517 Dawn's Early Night Pokémon Contest! Hearthome Convention! Pics
    518 Tag! We're It! Everyone Participate! Tag Battle! Pics
    519 Glory Blaze Chimchar VS Zangoose! Battle of Fate! Pics
    520 Smells Like Team Spirit Tag Battle! The Finals! Pics
    521 Tears For Fears! Chimchar's Tears! Pics
    522 Once There Were Greenfields! Cacea & Gardenia! Farewell is for Whom?! Pics
    523 Throwing A Track Switch Aipom & Buizel! Respective Roads! Pics
    524 The Keystone Pops Spiritomb & The Odd Keystone Pics
    525 Bibarel Gnaws Best Bibarel! Understood! Pics
    526 Nosing 'Round The Mountain Probopass! Burning Spirit! Pics
    527 Luxray Vision Luxray's Eyes! Pics
    528 Journey to the Unown! Unown of Solaceon Ruins! Pics
    529 Team Shocker! Pokémon Contest! Solaceon Convention! Pics
    530 Tanks For The Memories! Miltank of the Maid Café Pics
    531 Hot Springing A Leak! The Swinub Trio & The Hot Spring Battle! Pics
    532 Riding the Winds of Change! Gliscor and Gligar! Getting Through the Wind Maze! Pics
    533 Sleight of Sand! Pachirisu in Hippowdon's Mouth!? Pics
    534 Lost Leader Strategy! Lucario & The Aura Sphere of Rage! Pics
    535 Crossing the Battle Line! Dawn's First Gym Battle! Pics
    536 A Triple Fighting Chance! Veilstone Gym! Lucario VS Buizel! Pics
    537 Enter Galactic Lovely Fashion! Their Name is Team Galactic! Pics
    538 Bells are Singing! Pull Yourself Together, Chingling! Pics
    539 Pokémon Ranger and the Kidnapped Riolu (1) Pokémon Ranger! The Wave-Guiding Riolu! (Part One) Pics
    540 Pokémon Ranger and the Kidnapped Riolu (2) Pokémon Ranger! The Wave-Guiding Riolu! (Part Two) Pics
    541 Crossing Paths Goodbye, Dustox! Pics
    542 Pika and Goliath Pikachu! Raichu! The Road to Evolution! Pics
    543 Our Cup Runneth Over! Enter The Contest Master - Wallace! Pics
    544 A Full Course Tag Battle! Restaurant Seven Stars! Tag Battle for a Full Course!! Pics
    545 Staging A Heroes Welcome Everyone's A Rival! Wallace Cup! Pics
    546 Pruning a Passel of Pals! Fierce Battles! Everyone's Respective Rival! Pics
    547 Strategy With a Smile! Decisive Match! Dawn VS May! Pics
    548 Thief That Keeps On Thieving The Yanma Capture Operation! Pics
    549 Chim-Charred! The Scorching Chimchar Pics
    550 Cream of the Croagunk Crop! The Croagunk Festival of the Pastoria Great Marsh! Pics
    551 A Crasher Course in Power Pastoria Gym! VS Crasher Wake! Pics
    552 Hungry For the Good Life! The Gluttonous Swinub at Mr. Backlot's! Pics
    553 Fighting Fear With Fear! Gligar! Wings of Friendship!! Pics
    554 Arriving In Style! Hearthome Collection! Road To Becoming A Pokémon Stylist!  Pics
    555 The Psyduck Stops Here The Psyduck Roadblock Pics
    556 Camping It Up The Pokémon Summer School Offer Pics
    557 Up Close and Personable Research Release - "The Legend of the Lake"! Pics
    558 Ghoul Daze It's Ghost Time After School! Pics
    559 One Team, Two Team, Red Team, Blue Team! The Final Showdown! Pokémon Triathlon! Pics
    560 Lean Mean Team Rocket Machine Return to the Basics, Team Rocket! Pics
    561 Playing the Leveling Field The Dancing Gym Leader! Fantina Appears! Pics
    562 Doc Brock Pachirisu's Fever! Care-taking by Two People!? Pics
    563 Battling the Generation Gap Pokémon Contest! The Celestic Convention! Pics
    564 Losing Its Lustrous The Charge of Team Galactic!! (Part One) Pics
    565 Double Team Turnover The Charge of Team Galactic!! (Part Two) Pics
    566 If the Scarf Fits, Wear It The Unidfentified Floating Monster! Pics
    567 A Trainer and Child Reunion Elite Four Aaron! Forest of Seperate Encounters! Pics
    568 Aiding the Enemy Turtwig, Grotle...& Torterra! Pics
    569 Barry's Busting Out All Over! Rival Trainer Barry Appears! Pics
    570 Shield with a Twist Hearthome Gym! VS Fantina! Pics
    571 Jumping Rocket Ship Chaotic Melee At Canalave City! Pics
    572 Sleepless in Pre-Battle Cresselia VS Darkrai! Pics
    573 Get Your Rotom Running Yokan & Rotom Pics
    574 A Breed Stampede The Way To Befriend Pokémon! Pics
    575 Ancient Family Matter Rampardos VS Bastiodon Pics
    576 Dealing With Defensive Types Canalave Gym! Steel Battle! Pics
    577 Leading A Stray The Missing Child Wailmer Pics
    578 Steeling Peace of Mind! Riley & Lucario! Pics
    579 Saving the World from Ruins The Hidden Ruins of Iron Island! Pics
    580 Cheers on Castaways Isle! The Pikachu-Piplup Drifting Chronicle! Pics
    581 Hold the Phione Mischief Phione! Pics
    582 Another One Gabites the Dust Pokémon Contest! Akebi Convention! Pics
    583 Stealing the Conversation The Wild Jenny & Her Partner Chatot! Pics
    584 The Drifting Snorunt Froslass In A Blizzard Pics
    585 Noodles! Roamin' Off Team Rocket Breakup!? Pics
    586 Pursuing a Lofty Goal PokéRinger! Big Decisive Sky Battle!! Pics
    587 Trials and Adulations Clash! Mamoswine VS Aggron! Pics
    588 Not Aired Mysterious Creatures: Pokémon Pics
    589 The Lonely Snover The Lonely Snover! Pics
    590 Stopped in the Name of Love Evolution! This Time For Piplup!? Pics
    591 Old Rivals, New Tricks Pokémon Contest! Tatsuami Convention! Pics
    592 To Thine Own Pokemon Be True! Pokémon PingPong Competition! Ambipom Perseveres!! Pics
    593 Battling a Cute Drama Cherubi! Brave Battle!? Pics
    594 Classroom Training Teacher Candice of the Trainers' School! Pics
    595 Sliding into Seventh Snowpoint Gym! Ice Battle!! Pics
    596 A Pyramiding Rage Pyramid Battle! Brandon VS Paul! Pics
    597 Pillars of Friendship Regigigas Resurrection! J Again! Pics
    598 Frozen in their Tracks Ampharos Train! Looker Appears!! Pics
    599 Pedal to the Mettle Full Battle! Paul VS Ash! (Part One) Pics
    600 Evolving Strategies Full Battle! Paul VS Ash! (Part Two) Pics
    601 Uncrushing Defeat Uxie's Shadow! Pics
    602 Promoting Healthy Tangrowth King of the Forest! Tangrowth!! Pics
    603 Beating The Bustle & Hustle! Everybody Participate! Pokemon Hustle!! Pics
    604 Gateway to Ruin! Mt. Coronet Ruins! Team Galactic Conspiracy!! Pics
    605 Three Sides to Every Story Marill, Piplup & Elekid! Pics
    606 Strategy Begins At Home Dawn VS Mom! Showdown Between Parent & Child!! Pics
    607 A Faux Oak Finish! Rescue Professor Oak! Politoed VS Croagunk!! Pics
    608 Historical Mystery Tour Natu, Xatu...Mysterious Forest! Pics
    609 Challenging A Towering Figure! Tower Tycoon! That Man, Palmer! Pics
    610 Where No Togepi Has Gone Before! The Worst Togepi In History! Pics
    611 An Egg Scramble Johto Festa! Chikorita and Totodile Appear!! Pics
    612 Gone With the Windworks Dungeon Capture!? Valley Windworks!! Pics
    613 A Rivalry to Gible On! Gible...Get! Pics
    614 Dressed for Jess Success! Pokemon Contest! Suiren Convention!! Pics
    615 Bagged then Tagged Ash and Dawn! Tag Battle!! Pics
    616 Try for the Family Stone! Misdreavus, Murkrow & the Dusk Stone! Pics
    617 Sticking With You Know Who Pikachu & Piplup Keep Away! Pics
    618 Unlocking the Red Chain of Events! The Red Chain! Team Galactic Start!! Pics
    619 The Needs of Three Azelf, Uxie, Mesprit! Pics
    620 The Battle Finale of Legend! Dialga and Palkia! The Final Battle!! Pics
    621 The Treasure is All Mine! Full of Danger! James' Treasure Chest!! Pics
    622 Mastering Current Events! Air Battle Master Appears! Gliscor VS Scizor! Pics
    623 Double-Time Battle Training! Double Battle! Mamoswine & Cyndaquil! Pics
    624 A Meteoric Experience Gible & Draco Meteor Pics
    625 Gotta Get a Gible! Gible! Get It!! Pics
    626 Regaining the Home Advantage! Explosion! Magnezone vs Metagross!! Pics
    627 Short and To The Punch Growling Ice Punch! Buizel VS Mr. Mime!! Pics
    628 A Marathon Rivalry! Get Fired Up Snorlax! Prince of Pokéthlon! Pics
    629 Yes, in Dee Dee It's Dawn Pokemon Contest! Asatsuki Tournament!! Pics
    630 Playing the Performance Encore Double Battle! VS Plusle & Minun! Pics
    631 Fighting Ire with Fire Blast Evolution! Infernape!! Pics
    632 Piplup, Up and Away Piplup Becomes Separated! Pics
    633 Flint Sparks The Fire Elite Four Flint and Gym Leader Volkner! Pics
    634 The Fleeing Tower of Sunyshore! Takeoff! Sunyshore Tower!! Pics
    635 Teaching the Student Teacher Beach Pokémon School! Pics
    636 Keeping in Top Forme! Fly Shaymin! To the Far Side of the Sky!! Pics
    637 Pokémon Ranger: Heatran Rescue! Pokémon Ranger! Heatran Rescue Mission!! Pics
    638 An Elite Coverup! Elite Four Bertha! Hippowdon vs Torterra!! Pics
    639 Dawn of a Royal Day! Dancing Togekiss! Pokemon Contest Princess!! Pics
    640 With the Easiest of Grace! Togekiss! The Battle Which it Becomes Magnificent!! Pics
    641 Dealing With a Fierce Double Ditto Drama! Ditto - Transformation Battle Pics
    642 Last Call, First Round! Grand Festival! The Art of Flame & Ice! Pics
    643 Opposites Interact! Mamoswine & Pachirisu! The Ice Chandelier - Decisive Blow! Pics
    644 Coming Full Festival Circle! Semi-Final! Who is Heading to the Final!? Pics
    645 A Grand Fight for Winning! Final! Dawn VS Zoey! Pics
    646 For the Love of Meowth! Goodbye Team Rocket! Meowth's Love! Pics
    647 The Eighth Wonder of the Sinnoh World! Electric Shock Battle! The Final Badge!! Pics
    648 Four Roads Diverged in a Pokémon Port Ash VS Kenny! Setting Sail for Each Destination Pics
    649 Bucking the Treasure Trend! Treasure Hunter - Buck & Claydol Pics
    650 An Old Family Blend! The Eve of the Fierce Fighting! The Big Gathering of Ash's Pokémon! Pics
    651 League Unleashed! Opening! Sinnoh League - Suzuran Tournament!! Pics
    652 Casting a Paul on Barry! Sinnoh League Third Round! Barry VS Paul! Pics
    653 Working on a Right Move! Trick Room Terror! Ash VS Conway! Pics
    654 Familiarity Breeds Strategy! Rival Decisive Battle! Ash VS Paul! Pics
    655 A Real Rival Rouser! Intense Fighting Full Battle! Ash VS Paul! Pics
    656 Battling a Thaw in Relations Rival Battle Conclusion! Ash VS Paul! Pics
    657 The Semi-Final Frontier Sinnoh League Semi-Final! Darkrai Appears! Pics
    658 The Brockster Is In Pokémon Doctor Brock Pics
    659 Memories Are Made of Bliss Memories are Pearl! Friendships are Diamond! Pics
    S26 TBC Dawn's New Journey! Pics
    S27 TBC Pewter Gym - The Biggest Crisis Ever Pics

     
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