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Official Description

Watch Ash, Dawn, and Brock travel across the Sinnoh region to face challenges, battles, and the antics of Team Rocket! With Team Galactic out of the way, Ash can now focus on qualifying for the Sinnoh League. And Dawn will train to compete for her final Contest Ribbon, which would allow her to compete in the Grand Festival!

Episode List

Picture	Episode # (Season)	Episode # (Overall)	Episode name (Intl / Japan)	Air dates (Intl / Japan)	Synopsis
	1	E# 620 J# 626	"Regaining the Home Advantage!"  "Bakusō! Jibakoiru Tai Metagurosu!!" (爆走！ジバコイルVSメタグロス！！) (Loud Roar! Jibacoil vs. Metagross!!)	June 5, 2010 January 7, 2010
	2	E# 621 J# 627	"Short and to the Punch!"  "Unare Reitō Panchi! Buizeru Tai Bariyādo!!" (唸れれいとうパンチ！ブイゼルVSバリヤード！！) (Roaring Freezing Punch! Buoysel vs. Barrierd!!)	June 12, 2010 January 14, 2010
	3	E# 622 J# 628	"A Marathon Rivalry!"  "Moe yo Kabigon! Pokesuron no Ōja!!" (燃えよカビゴン！ポケスロンの王者！！) (Get Fired Up, Kabigon! The Pokéthlon King!!)	June 19, 2010 January 21, 2010
	4	E# 623 J# 629	"Yes, in Dee Dee It's Dawn!"  "Kaimaku! Pokemon Kontesuto, Asatsuki Taikai!!" (開幕！ポケモンコンテスト・アサツキ大会！！) (Begin! Pokémon Contest – Asatsuki Tournament!!)	June 26, 2010 January 28, 2010
	5	E# 624 J# 630	"Playing the Performance Encore!"  "Daburu Batoru! Tai Purasuru, Mainan!!" (ダブルバトル！VSプラスル・マイナン！！) (Double Battle! Vs. Purasuru & Minun!!)	July 3, 2010 February 4, 2010
	6	E# 625 J# 631	"Fighting Ire with Fire!"  "Baku Shinka! Gōkazaru!!" (爆進化！ゴウカザル!!) (Explosive Evolution! Goukazaru!!)	July 10, 2010 February 11, 2010
	7	E# 626 J# 632	"Piplup, Up and Away!"  "Potchama Hagureru!" (ポッチャマはぐれる！) (Pochama Goes Astray!)	July 17, 2010 February 18, 2010
	8	E# 627 J# 633	"Flint Sparks the Fire!"  "Shitennō Ōba to Jimu Rīdā, Denji!" (四天王オーバとジムリーダー・デンジ！) (Elite Four Ōba and Gym Leader - Denji!)	July 24, 2010 February 25, 2010
	9	E# 628 J# 634	"The Fleeing Tower of Sunyshore!"  "Hasshin! Nagisa Tawā!!" (発進！ナギサタワー！！) (Liftoff! Nagisa Tower!!)	July 31, 2010 March 4, 2010
	10	E# 629 J# 635	"Teaching the Student Teacher"  "Umibe no Pokemon Sukūru!" (海辺のポケモンスクール！) (The Pokémon School at the Seaside!)	August 7, 2010 March 11, 2010
	11	E# 630 J# 636	"Keeping in Top Forme!"  "Tobe Sheimi! Sora no Kanata e!!" (飛べシェイミ！空の彼方へ！！) (Fly Shaymin! Towards the Far Side of the Sky!!)	August 14, 2010 March 18, 2010
	12	E# 631 J# 637	"Pokémon Ranger: Heatran Rescue!"  "Pokemon Renjā! Hīdoran Kyūshutsu Sakusen!!" (ポケモンレンジャー！ヒードラン救出作戦！！) (Pokémon Ranger! Heatran Rescue Mission!!)	October 16, 2010 March 18, 2010
	13	E# 632 J# 638	"An Elite Coverup!"  "Shitennō Kikuno! Kabarudon Tai Dodaitosu!!" (四天王キクノ！カバルドンVSドダイトス！！) (Elite Four Kikuno! Kabarudon vs. Dodaitose!!)	August 21, 2010 April 1, 2010
	14	E# 633 J# 639	"Dawn of a Royal Day!" "Togekissu Mau! Ōjosama no Pokemon Kontesuto!!" (トゲキッス舞う！王女さまのポケモンコンテスト！！)  (Togekiss Dance! The Princess's Pokémon Contest!!)	August 28, 2010 April 1, 2010
	15	E# 634 J# 640	"With the Easiest of Grace!"  "Togekissu! Kareinaru Batoru!!" (トゲキッス！華麗なるバトル！！) (Togekiss! The Magnificent Battle!!)	September 4, 2010 April 15, 2010
	16	E# 635 J# 641	"Dealing with a Fierce Double Ditto Drama!"  "Metamon Henshin Batoru! Honmono wa Dotchi~nyo!?" (メタモン・へんしんバトル！本物はドッチ～ニョ！？) (Metamon – Transformation Battle! Which One is the Real One!?)	September 11, 2010 April 22, 2010
	17	E# 636 J# 642	"Last Call, First Round!" "Gurando Fesutibaru Kaimaku! Honō to Kōri no Āto!!" (グランドフェスティバル開幕！炎と氷のアート！！)  (Grand Festival! The Art of Flame and Ice!!)	September 18, 2010 April 29, 2010
	18	E# 637 J# 643	"Opposites Interact!" "Manmū, Pachirisu! Kimero Kōri no Shanderia!!" (マンムー、パチリス！決めろ氷のシャンデリア！！)  (Mammoo, Pachirisu! The Ice Chandelier is Chosen!!)	September 25, 2010 May 6, 2010
	19	E# 638 J# 644	"Coming Full Festival Circle!" "Semifainaru! Kesshō e Susumu no wa!?" (セミファイナル！決勝へ進むのは！？)  (The Semi-Finals! Who is Heading to the Finals!?)	October 2, 2010 May 13, 2010
	20	E# 639 J# 645	"A Grand Fight for Winning!"  "Ketchaku Raibaru Taiketsu! Hikari Tai Nozomi!!" (決着ライバル対決！ヒカリVSノゾミ！！) (Conclusive Rival Showdown! Hikari vs. Nozomi!!)	October 9, 2010 May 20, 2010
	21	E# 640 J# 646	"For the Love of Meowth!"  "Sayonara Roketto-dan! Nyāsu no Koi!?" (さよならロケット団！ニャースの恋！？) (Goodbye Team Rocket! Love of Nyarth!?)	October 23, 2010 May 27, 2010
	22	E# 641 J# 647	"The Eighth Wonder of the Sinnoh World!"  "Dengeki Batoru! Saigo no Bajji!!" (電撃バトル！最後のバッジ！！) (Electric Shock Battle! The Final Badge!!)	October 30, 2010 June 3, 2010
	23	E# 642 J# 648	"Four Roads Diverged in a Pokémon Port!" "Satoshi Tai Kengo! Sorezore no Funade!!" (サトシVSケンゴ！それぞれの船出！！) (Satoshi vs. Kengo! Respective Departure!!)	November 6, 2010 June 10, 2010
	24	E# 643 J# 649	"Bucking the Treasure Trend!"  "Torejā Hantā – Baku to Yajiron!" (トレジャーハンター・バクとヤジロン！) (Treasure Hunter – Baku and Yajilon!)	November 13, 2010 June 17, 2010
	25	E# 644 J# 650	"An Old Family Blend!" "Nessen Zen'ya! Satoshi no Pokemon Daishūgō!!" (熱戦前夜！サトシのポケモン大集合！！)  (Eve of Fierce Battle! The Great Gathering of Satoshi's Pokémon!!)	November 20, 2010 June 24, 2010
	26	E# 645 J# 651	"League Unleashed!"  "Kaimaku! Shin'ō Rīgu – Suzuran Taikai!!" (開幕！シンオウリーグ・スズラン大会！！) (Begin! Sinnoh League – Suzuran Tournament!!)	November 27, 2010 July 1, 2010
	27	E# 646 J# 652	"Casting a Paul on Barry!"  "Shin'ō Rīgu San Kaisen! Shinji Tai Jun!!" (シンオウリーグ三回戦！シンジ対ジュン！！) (The Third-Round Battle of Sinnoh League! Shinji Against Jun!!)	December 4, 2010 July 15, 2010
	28	E# 647 J# 653	"Working on a Right Move!!"  "Kyōfu no Torikku Rūmu! Satoshi Tai Kōhei!!" (恐怖のトリックルーム！サトシ対コウヘイ！！) (Trick Room of Terror! Satoshi Against Kouhei!!)	December 11, 2010 July 22, 2010
	29	E# 648 J# 654	"Familiarity Breeds Strategy!"  "Raibaru Kessen! Satoshi Tai Shinji!!" (ライバル決戦！サトシ対シンジ！！) (Rival Decisive Battle! Satoshi Against Shinji!!)	December 18, 2010 August 5, 2010
	30	E# 649 J# 655	"A Real Rival Rouser!"  "Gekitō Furu Batoru! Satoshi Tai Shinji!!" (激闘フルバトル！サトシ対シンジ！！) (Intense Fighting Full Battle! Satoshi Against Shinji!!)	January 8, 2011 August 12, 2010
	31	E# 650 J# 656	"Battling a Thaw in Relations!"  "Ketchaku Raibaru Batoru! Satoshi Tai Shinji!!" (決着ライバルバトル！サトシ対シンジ！！) (Conclusive Rival Battle! Satoshi Against Shinji!!)	January 15, 2011 August 19, 2010
	32	E# 651 J# 657	"The Semi-Final Frontier"  "Shin'ō Rīgu Junkesshō! Dākurai Tōjō!!" (シンオウリーグ準決勝！ダークライ登場！！) (Sinnoh League Semi-Final! Darkrai Appears!!)	January 22, 2011 August 26, 2010
	33	E# 652 J# 658	"The Brockster Is In!"  "Pokemon Dokutā – Takeshi!" (ポケモンドクター・タケシ！) (Pokémon Doctor – Takeshi!)	January 29, 2011 September 2, 2010
	34	E# 653 J# 659	"Memories Are Made of Bliss!"  "Omoide wa Pāru! Yūjō wa Daiyamondo!!" (思い出はパール！友情はダイヤモンド！！) (Memories Are Pearls! Friendship is a Diamond!!)	February 5, 2011 September 9, 2010

Ash's Travelling Companions

Key Events & Gym Battles

Events of note



Gym battles

Pokemon: Captures, Changes, Encounters & Evolutions

New Pokemon captured by Ash & Other Characters


Pokemon released back into the wild
There were a number of occasions where either Ash or another character released a captured Pokémon back into the wild for one reason or another


Evolution
We see the following Pokémon evolutions take place during this season

TV Broadcasts & Original Airing Dates

Trivia & Facts

DVD & Blu-Ray / Streaming