I compiled a list of episodes for people who want to get into the Super Sentai franchise while skipping through most non-essential "Filler". This list only includes episodes that are significant to the overall story and character development for each series.
It's the turn for Juken Sentai Gekiranger. The 31st Super Sentai series which was adapted into Power Rangers Jungle Fury.
Gekiranger has 49 episodes and by cutting out all the filler, we're left with 45 episodes
Lesson 1: Niki-Niki! Fierce Beast-Fist
Lesson 2 - Waki-Waki! Beast-Fist Combination!
Lesson 3 - Shio-Shio! Cleaning Power
Lesson 4: Zowa-Zowa! The Five Venom Fists (修行その４ ゾワゾワ！五毒拳 Shugyō Sono Yon: Zowa-Zowa! Godokuken)
Lesson 5: Uja-Uja! What Should I Do? (修行その５ ウジャウジャ！どーすりゃいいの？ Shugyō Sono Go: Uja-Uja! Dōsuryaiino?)
Lesson 6: Juwān! …What's That? (修行その６ ジュワーン！って、何？ Shugyō Sono Roku: Juwān! 'tte, Nani?)
Lesson 7: Shuba-Shuba Dancing! (修行その７ シュバシュバ踊ろう！ Shugyō Sono Nana: Shuba-Shuba Odorō!)
Lesson 8: Koto-Koto… Earnestly Koto-Koto (修行その８ コトコト…ひたすらコトコト Shugyō Sono Hachi: Koto-Koto… Hitasura Koto-Koto)
Lesson 9: The Kena-Kena Woman (修行その９ ケナケナの女 Shugyō Sono Kyū: Kena-Kena no Onna)
Lesson 10: Jara-Jara Attack! The First Errand (修行その10 ジャラジャラ襲撃！はじめてのおつかい Shugyō Sono Jū: Jara-Jara Shūgeki! Hajimete no Otsukai)
Lesson 11: Ukya-Ukya! Beast-Fist Armament (修行その11 ウキャウキャ！獣拳武装 Shugyō Sono Jūichi: Ukya-Ukya! Jūken Busō)
Lesson 12: Zowan-Zowan! Confrontation Beast-Fist, Training Starts (修行その12 ゾワンゾワン！臨獣拳、修行開始 Shugyō Sono Jūni: Zowan-Zowan! Rinjūken, Shugyō Kaishi)
Lesson 13: Shin-Shin! The Spirit's Dance (修行その13 シンシン！精霊の舞い Shugyō Sono Jūsan: Shin-Shin! Seirei no Mai)
Lesson 14: Netsu-Netsu! Forget Your Techniques (修行その14 ネツネツ！技を捨てろ Shugyō Sono Jūyon: Netsu-Netsu! Waza o Sutero)
Lesson 15: Howa-Howa! Mama Work (修行その15 ホワホワ！ママ業 Shugyō Sono Jūgo: Howa-Howa! Mama Gyō)
Lesson 16: Jiri-Jiri! Confrontation Beast Hall, Extra-curricular Class (修行その16 ジリジリ！臨獣殿、課外授業 Shugyō Sono Jūroku: Jiri-Jiri! Rinjūden, Kagai Jugyō)
Lesson 17: Goro-Goro! Teacher and Student Love (修行その17 ゴロゴロ！師弟愛 Shugyō Sono Jūnana: Goro-Goro! Shitei Ai)
Lesson 18: Shakkin-Kīn! The Body is Strong (修行その18 シャッキンキーン！身体、強い Shugyō Sono Jūhachi: Shakkin-Kīn! Karada, Tsuyoi)
Lesson 19: Gokin-Gokin! Showdown with Rio (修行その19 ゴキンゴキン！理央と対決 Shugyō Sono Jūkyū: Gokin-Gokin! Rio to Taiketsu)
Lesson 20: Gicho-Gicho! Triangle Opposing Fight (修行その20 ギチョギチョ！トライアングル対抗戦 Shugyō Sono Nijū: Gicho-Gicho! Toraianguru Taikō Sen)
Lesson 21: Biki-Biki-Biki-Biki! Kageki in Extreme Ki (修行その21 ビキビキビキビキ！カゲキに過激気 Shugyō Sono Nijūichi: Biki-Biki-Biki-Biki! Kageki ni Kageki)
Lesson 23: Gure-Gure! Gure-Gure! Sukeban Captain (修行その23 グレグレ！スケ番キャプテン Shugyō Sono Nijūsan: Gure-Gure! Sukeban Kyaputen)
Lesson 24: Garu-Garu! What!? You're my Younger Brother!? (修行その24 ガルガル！なんてこった、弟が！？ Shugyō Sono Nijūyon: Garu-Garu! Nante Kotta Otōto ga!?)
Lesson 25: Hine-Hine! Shigeki is Mine Alone (修行その25 ヒネヒネ！俺だけの紫激気 Shugyō Sono Nijūgo: Hine-Hine! Ore Dake no Shigeki)
Lesson 26: Mohe-Mohe! Consult Your Worries (修行その26 モヘモヘ！お悩み相談 Shugyō Sono Nijūroku: Mohe-Mohe! Onayami Sōdan)
Lesson 27: Beran-Beran. Burning Play-by Play (修行その27 ベランベラン！燃えよ実況 Shugyō Sono Nijūnana: Beran-Beran! Moeyo Jikkyō)
Lesson 28: Bishi-Bishi Pikeen Osu! (修行その28 ビシビシピキーン押忍！ Shugyō Sono Nijūhachi Bishi-Bishi Pikīn Osu!)
Lesson 29: Guda-Guda Here-Here! Shopping (修行その29 グダグダヘレヘレ！ショッピング Shugyō Sono Nijūkyū: Guda-Guda Here-Here! Shoppingu)
Lesson 30: The Sei-Sei de Dou-dou Woman (修行その30 セイセイでドウドウな女 Shugyō Sono Sanjū: Sei-Sei de Dō-Dō na On'na)
Lesson 31: We Muni-Muni! (修行その31 俺たちムニムニ！ Shugyō Sono Sanjūichi: Ore-tachi Muni-Muni!)
Lesson 32: Zowangi-Zowango! The Gathering, Beast Origin Village (修行その32 ゾワンギゾワンゴ！集結、獣源郷 Shugyō Sono Sanjūni: Zowangi-Zowango! Shūketsu, Jūgenkyō)
Lesson 33: Fure-Fure Gatchiri! Kung Fu Chūshingura (修行その33 フレフレガッチリ！カンフー忠臣蔵 Shugyō Sono Sanjūsan: Fure-Fure Gatchiri! Kanfū Chūshingura)
Lesson 34: Gowan-Gowan's Dain-Dain! Beast Fist Giant God, Comes (修行その34 ゴワンゴワンのダインダイン！獣拳巨神、見参 Shugyō Sono Sanjūyon: Gowan-Gowan no Dain-Dain! Jūken Kyojin, Kenzan)
Lesson 35: Gyuon-Gyuon! Beast Power Blooming (修行その35 ギュオンギュオン！獣力開花 Shugyō Sono Sanjūgo: Gyuon-Gyuon! Jūriki Kaika)
Lesson 37: Gyan-Gyan! Useless Arranged Marriage Discussion (修行その37 ギャンギャン！お見合い問答無用 Shugyō Sono Sanjūnana: Gyan-Gyan! Omiai Mondō Muyō)
Lesson 39: Uro-Uro! The Children Don't Return (修行その39 ウロウロ！帰らない子供たち Shugyō Sono Sanjūkyū: Uro-Uro! Kaera Nai Kodomo-tachi)
Lesson 40: Head goes Bakān! The Shock of the Truth (修行その40 頭、バカーン！衝撃の事実 Shugyō Sono Yonjū: Atama, Bakān! Shōgeki no Jijitsu)
Lesson 41: Zushi-Zushi! No More (修行その41 ズシズシ！もうやだ Shugyō Sono Yonjūichi: Zushi-Zushi! Mō Yada)
Lesson 42: Wasshi-Wasshi Moving On! (修行その42 ワッシワッシで乗り越えろ！ Shugyō Sono Yonjūni: Wasshi-Wasshi de Norikoero)
Lesson 44: Wafu-Wafu! Father's Melody (修行その44 ワフワフ！父ちゃんのメロディ Shugyō Sono Yonjūyon: Wafu-Wafu! Tōchan no Merodi)
Lesson 45: Pikīn! Destined Confrontations (修行その45 ピキーン！宿命の対決 Shugyō Sono Yonjūgo: Pikīn! Shukumei no Taiketsu)
Lesson 46: Gyawa-Gyawa Memories (修行その46 ギャワギャワの記憶 Shugyō Sono Yonjūroku: Gyawa-Gyawa no Kioku)
Lesson 47: Pika-Pika! My Path (修行その47 ピカピカ！俺の道 Shugyō Sono Yonjūnana: Pika-Pika! Ore no Michi)
Lesson 48: Saba-Saba! And Now, Judgement Fist (修行その48 サバサバ！いざ拳断 Shugyō Sono Yonjūhachi: Saba-Saba! Iza Ken Dan)
Final Lesson: Zun-Zun! The Beast-Fist, for All Time... (修行そのファイナル ズンズン!獣拳は, ずっと... Shugyō Sono Fainaru: Zun Zun! Jūken wa, zutto...)
