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Official Description

It’s looking good for Ash as he works on his next three Gym Badges, but not so good for Dawn, coming off a pair of Contest defeats. Both will do what they can to become better Trainers, from entering the Wallace Cup competition to attending Professor Rowan’s Pokémon Summer Academy. Hopefully, the new tactics they pick up will give them the tools they need to succeed against the latest plot by Pokémon Hunter J—as well as the emerging threat of Team Galactic!

Episode List

Picture	Episode # (Season)	Episode # (Overall)	Episode name (Intl / Japan)	Air dates (Intl / Japan)	Synopsis
	1	E# 516 J# 521	"Tears for Fears!" "Hikozaru no Namida!" (ヒコザルの涙！) (Hikozaru's Tears!)	April 12, 2008 November 8, 2007
	2	E# 517 J# 522	"Once There Were Greenfields" "Natane to Sabonea! Sayonara wa Dare no Tame!" (ナタネとサボネア！さよならは誰のため！) (Natane and Sabonea! Farewell to Whom!)	April 19, 2008 November 15, 2007
	3	E# 518 J# 523	"Throwing the Track Switch" "Eipamu to Buizeru! Sorezore no Michi!!" (エイパムとブイゼル！それぞれの道！！) (Aipom and Buizel! Respective Roads!!)	April 26, 2008 November 22, 2007
	4	E# 519 J# 524	"The Keystone Pops!" "Mikaruge no Kanameishi!" (ミカルゲの要石！) (Mikaruge's Keystone!)	May 10, 2008 November 29, 2007
	5	E# 520 J# 525	"Bibarel Gnaws Best!" "Bīdaru wa Shitteita!" (ビーダルは知っていた！) (Bidaru Knew!)	May 17, 2008 November 29, 2007
	6	E# 521 J# 526	"Nosing 'Round the Mountain" "Dainōzu! Atsuki Tamashii!!" (ダイノーズ！熱き魂！！) (Dainose! Burning Spirit!!)	May 24, 2008 December 6, 2007
	7	E# 522 J# 527	"Luxray Vision" "Rentorā no Hitomi!" (レントラーの瞳！) (Rentorar's Eye!)	May 31, 2008 December 13, 2007
	8	E# 523 J# 528	"Journey to the Unown" "Zui no Iseki no Annōn!" (ズイの遺跡のアンノーン！) (The Unknown of Zui Ruins!)	June 7, 2008 December 20, 2007
	9	E# 524 J# 529	"Team Shocker" "Pokemon Kontesto! Zui Taikai!!" (ポケモンコンテスト！ズイ大会！！) (Pokémon Contest! Zui Tournament!!)	June 14, 2008 December 20, 2007
	10	E# 525 J# 530	"Tanks for the Memories" "Meido Kafe no Mirutanku!" (メイドカフェのミルタンク！) (Miltank of the Maid Café!)	June 21, 2008 January 10, 2008
	11	E# 526 J# 531	"Hot Springing a Leak" "Urimū Torio to Yukemuri Batoru!!" (ウリムートリオと湯けむりバトル！！) (The Urimoo Trio and the Steaming Hot Water Battle!!)	June 28, 2008 January 17, 2008
	12	E# 527 J# 532	"Riding the Winds of Change" "Guraion to Guraigā! Kaze no Meiro o Nukete!!" (グライオンとグライガー！風の迷路をぬけて！！) (Glion and Gligar! Escaping the Maze of Wind!)	July 5, 2008 January 24, 2008
	13	E# 528 J# 533	"Sleight of Sand" "Pachirisu wa Kabarudon no Kuchi no Naka!?" (パチリスはカバルドンの口の中！？) (Pachirisu is in Kabarudon's Mouth!?)	July 12, 2008 January 31, 2008
	14	E# 529 J# 534	"Lost Leader Strategy" "Rukario! Ikari no Hadōdan!!" (ルカリオ！怒りのはどうだん！！) (Lucario! Wave Bomb of Anger!!)	July 19, 2008 February 7, 2008
	15	E# 530 J# 535	"Crossing the Battle Line!" "Hikari Hajimete no Jimu Batoru!!" (ヒカリはじめてのジムバトル！！) (Hikari's First Gym Battle!!)	July 26, 2008 February 14, 2008
	16	E# 531 J# 536	"A Triple Fighting Chance!" "Tobari Jimu! Rukario Tai Buizeru!!" (トバリジム！ルカリオ対ブイゼル！！) (Tobari Gym! Lucario Against Buoysel!!)	August 2, 2008 February 28, 2008
	17	E# 532 J# 537	"Enter Galactic!" "Suteki Fasshon! Sono na wa Ginga-dan!!" (ステキファッション！その名はギンガ団！！) (Lovely Fashion! Their Name is Team Galaxy!!)	August 9, 2008 March 6, 2008
	18	E# 533 J# 538	"The Bells Are Singing!" "Shanto Shite Rīshan!" (シャンとしてリーシャン！)  (Pull Yourself Together, Lisyan!)	August 16, 2008 March 13, 2008
	19	E# 534 J# 539	"Pokémon Ranger and the Kidnapped Riolu! Part One" "Pokemon Renjā! Hadō no Rioru!! (Zenpen)" (ポケモンレンジャー！波導のリオル！！（前編）) (Pokémon Ranger! Wave-Guiding Riolu!! [Part 1])	November 1, 2008 March 20, 2008
	20	E# 535 J# 540	"Pokémon Ranger and the Kidnapped Riolu! Part Two" "Pokemon Renjā! Hadō no Rioru!! (Kōhen)" (ポケモンレンジャー！波導のリオル！！（後編） (Pokémon Ranger! Wave-Guiding Riolu!! [Part 2])	November 8, 2008 March 20, 2008
	21	E# 536 J# 541	"Crossing Paths" "Sayonara Dokukeiru!" (さよならドクケイル！) (Goodbye Dokukeiru!)	August 23, 2008 April 3, 2008
	22	E# 537 J# 542	"Pika and Goliath" "Pikachū! Raichū! Shinka e no Michi!!" (ピカチュウ！ライチュウ！進化への道！！) (Pikachu! Raichu! The Road to Evolution!!)	August 30, 2008 April 3, 2008
	23	E# 538 J# 543	"Our Cup Runneth Over!" "Kontesuto Masutā, Mikuri Tōjō!!" (コンテストマスター・ミクリ登場！！) (The Contest Master Mikuri Appears!!)	September 6, 2008 April 17, 2008
	24	E# 534 J# 539	"A Full Course Tag Battle!" "Resutoran Nanatsuboshi! Taggu Batoru de Furukōsu!!" (レストラン七つ星！タッグバトルでフルコース！！) (Seven Stars Restaurant! Tag Battle for a Full Course!!)	September 13, 2008 April 24, 2008
	25	E# 540 J# 545	"Staging a Heroes' Welcome!" "Minna Raibaru! Mikuri Kappu!!" (みんなライバル！ミクリカップ！！) (Everyone's a Rival! Mikuri Cup!!)	September 20, 2008 May 8, 2008
	26	E# 541 J# 546	"Pruning a Passel of Pals!" "Gekitō! Sorezore no Batoru!!" (激闘！それぞれのバトル！！) (Fierce Fighting! Respective Battles!!)	September 27, 2008 May 8, 2008
	27	E# 542 J# 547	"Strategy with a Smile!" "Kessen! Hikari Tai Haruka!!" (決戦！ヒカリVSハルカ！！) (Decisive Match! Hikari vs. Haruka!!)	October 11, 2008 May 15, 2008
	28	E# 543 J# 548	"The Thief That Keeps on Thieving!" "Yanyanma! Getto Sakusen!!" (ヤンヤンマ！ゲット作戦！！) (Yanyanma! The Capture Operation!)	October 18, 2008 May 22, 2008
	29	E# 544 J# 549	"Chim-Charred!" "Shakunetsu no Hikozaru!" (灼熱のヒコザル！) (The Scorching Hikozaru!)	October 25, 2008 May 29, 2008
	30	E# 545 J# 550	"Cream of the Croagunk Crop!" "Nomose Shitsugen no Guregguru Matsuri!?" (ノモセ大湿原のグレッグル祭り！？) (The Gregguru Festival of the Nomose Great Marsh!?)	November 15, 2008 June 5, 2008
	31	E# 546 J# 551	"A Crasher Course in Power!" "Nomose Jimu! Tai Makishimamu Kamen!!" (ノモセジム！VSマキシマム仮面！！) (Nomose Gym! Vs. Maximum Mask!!)	November 22, 2008 June 19, 2008
	32	E# 547 J# 552	"Hungry for the Good Life!" "Urayama-sanchi no Ōgui Urimū!" (ウラヤマさんちの大食いウリムー！) (The Gluttonous Urimoo at Mr. Urayama's!!)	December 6, 2008 July 3, 2008
	33	E# 548 J# 553	"Fighting Fear with Fear!" "Guraigā! Yūjō no Tsubasa!!" (グライガー！友情の翼！！) (Gligar! Wings of Friendship!!)	December 13, 2008 July 3, 2008
	34	E# 549 J# 554	"Arriving in Style!" "Yosuga Korekushon! Pokemon Sutairisuto e no Michi!!" (ヨスガコレクション！ポケモンスタイリストへの道！！)  (Yosuga Collection! The Road to Becoming a Pokémon Stylist!!)	December 20, 2008 July 10, 2008
	35	E# 550 J# 555	"The Psyduck Stops Here!" "Kodakku no Tōsenbo!" (コダックの通せんぼ！) (The Koduck Roadblock!)	December 27, 2008 July 24, 2008
	36	E# 551 J# 556	"Camping it Up!" "Pokemon Samāsukūru Kaikō!!" (ポケモンサマースクール開講！！) (The Pokémon Summer School Course!!)	January 3, 2009 August 7, 2008
	37	E# 552 J# 557	"Up Close and Personable!" "Kenkyū Happyō, Mizuumi no Densetsu!'" (研究発表「湖の伝説」！) (Research Presentation: "Legend of the Lake"!)	January 10, 2009 August 14, 2008
	38	E# 553 J# 558	"Ghoul Daze!" "Hōkago ha Gōsuto Taimu!?" (放課後はゴーストタイム！？) (It's Ghost Time After School!)	January 17, 2009 August 21, 2008
	39	E# 554 J# 559	"One Team, Two Team, Red Team, Blue Team!" "Saigo no Daishōbu! Pokemon Toraiasuron!" (最後の大勝負！ポケモントライアスロン！) (The Final Showdown! Pokémon Triathlon!)	January 24, 2009 August 28, 2008
	40	E# 555 J# 560	"A Lean Mean Team Rocket Machine!" "Genten Kaiki da Roketto-Dan!?" (原点回帰だロケット団！？) (Back to Basics, Team Rocket!?)	January 31, 2009 September 4, 2008
	41	E# 556 J# 561	"Playing the Leveling Field!" "Odoru Jimu Rīdā! Merissa Tōjō!!" (踊るジムリーダー！メリッサ登場！！) (The Dancing Gym Leader! Melissa Appears!!)	February 7, 2009 September 11, 2008
	42	E# 557 J# 562	"Doc Brock!" "Pachirisu o Netsu desu! Futari de Orusuban!?" (パチリスお熱です！2人でお留守番！？) (Pachirisu Has a Fever! Being Two People Taking Care!?)	February 14, 2009 September 25, 2008
	43	E# 558 J# 563	"Battling the Generation Gap!" "Pokemon Kontesuto! Kannagi Taikai!!" (ポケモンコンテスト！カンナギ大会！！) (Pokémon Contest! Kannagi Tournament!!)	February 21, 2009 September 25, 2008
	44	E# 559 J# 564	"Losing Its Lustrous!" "Ginga-Dan Shūgeki!! (Zenpen)" (ギンガ団襲撃！！（前編）) (Team Galaxy Attacks!! [Part 1])	February 28, 2009 October 2, 2008
	45	E# 560 J# 565	"Double Team Turnover!" "Ginga-Dan Shūgeki!! (Kōhen)" (ギンガ団襲撃！！（後編）) (Team Galaxy Attacks!! [Part 2])	March 7, 2009 October 2, 2008
	46	E# 544 J# 549	"If the Scarf Fits, Wear It!" "Ukabu Mikakunin Kaibutsu!?" (浮かぶ未確認怪物！？) (The Floating Unidentified Mysterious Monster!?)	March 21, 2009 October 16, 2008
	47	E# 562 J# 567	"A Trainer and Child Reunion!" "Shitennō Ryō! Deai to Wakare no Mori!" (四天王リョウ！出会いと別れの森！) (Elite Four Ryou! Forest of Meeting and Separation!)	March 28, 2009 October 23, 2008
	48	E# 563 J# 568	"Aiding the Enemy!" "Naetoru, Hayashigame... Soshite Dodaitosu!" (ナエトル、ハヤシガメ…そしてドダイトス！) (Naetoru, Hayashigame... and Dodaitosu!)	April 4, 2009 October 30, 2008
	49	E# 564 J# 569	"Barry's Busting Out All Over!" "Raibaru Torēnā, Jun Tōjō!!" (ライバルトレーナー・ジュン登場！！) (Rival Trainer Jun Appears!!)	April 11, 2009 November 6, 2008
	50	E# 565 J# 570	"Shield with a Twist!" "Yosuga Jimu Sen! Tai Merissa!!" (ヨスガジム戦！VSメリッサ！！) (Yosuga Gym Match! Vs. Melissa!!)	April 18, 2009 November 13, 2008
	51	E# 566 J# 571	"Jumping Rocket Ship!" "Kōsen Konran Mio Shiti!" (混戦混乱ミオシティ！) (Chaotic Melee in Mio City!)	April 25, 2009 November 20, 2008
	52	E# 567 J# 572	"Sleepless in Pre-Battle" "Kureseria Tai Darkurai!" (クレセリアVSダークライ！) (Cresselia vs. Darkrai!)	May 2, 2009 December 4, 2008

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