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|This article is about a/an episode in Zyuden Sentai Kyoryuger .|
Dantetsu reveals he has sided with the Deboss Army to save the Earth itself, but will allow the extinction of all life. Daigo, who faintly hears the Earth's melody, decides to fight his father who is now Kyoryu Silver. Elsewhere, Ian tracks down Aigaron and decides to finally settle his score with the one responsible for his friend's death.
Daigo feels that his father is hiding something from him and decides to meet him in person. At first, all of his friends refuse to let him to go, but finally let him be after being told that Daigo notices Bragigas accepts his father
Later on, Lord Deboss fulfills his promise to Dantetsu and not long after, Daigo appears to challenge his father. Dantetsu appears and asking what his son wants and being told that Daigo wants to hear the Earth's Melody from him. Proud of his son, Dantetsu and Daigo transform and face each other. In battle, Daigo refuses Gabutyra's help to become Carnival.
Moments later, Ian and the others decide to meet Daigo, only to be interrupted by Canderila, Luckyuro, and Aigaron who's now in trouble. Aigaron pleads for Ian to save Candellila and Luckyuro and doesn't care if Ian still goes to kill him. The rest battling the new Deboss General Sorrowful Knight Icerondo while Ian has a hard time to think about which one is the best, let Aigaron to be suffered more, or forgiving him. By accessing Deinosgrander Armed On, Ian sadly decides to end Aigaron's suffering by destroying his armor. In a rage, Ian kills Icerondo mercilessly with Aigaron's axe and advices Candellila with Luckyuro to find a new way to live just like Torin.
Daigo and Dantetsu still fight and Daigo let himself to be punched mercilessly by his father. Later, Daigo finally realizes what his father's true plan. After understanding each other, they are attacked by Endolf and Dogold. Both of them explains that the promise was a lie and the destruction will still go on.
All of Daigo's friends come just in time for Daigo to tell them what his father's true plan is. After the revival of Mad Torin, the fact was finally told: The true reason why Dantetsu killed Torin is so the Wise God can kill the dark spirits before they are revived.
- Daigo Kiryu: Ryo Ryusei (竜星 涼 Ryūsei Ryō?)
- Ian Yorkland: Syuusuke Saito (斉藤 秀翼 Saitō Shūsuke?)
- Nobuharu Udo: Yamato Kinjo (金城 大和 Kinjō Yamato?)
- Souji Rippukan: Akihisa Shiono (塩野 瑛久 Shiono Akihisa?)
- Amy Yuuzuki: Ayuri Konno (今野 鮎莉 Konno Ayuri?)
- Utsusemimaru: Atsushi Maruyama (丸山 敦史 Maruyama Atsushi?)
- Wise God Torin, Mad Torin (Voice): Toshiyuki Morikawa (森川 智之 Morikawa Toshiyuki?)
- Dantetsu Kiryu: Shinji Yamashita (山下 真司 Yamashita Shinji?)
- Hundred-Faced High Priest Chaos (Voice): Takayuki Sugō (菅生 隆之 Sugō Takayuki?)
- Raging Knight Dogold (Voice): Satoshi Tsuruoka (鶴岡 聡 Tsuruoka Satoshi?)
- Joyful Knight Candelilla (Voice): Haruka Tomatsu (戸松 遥 Tomatsu Haruka?)
- Sorrowful Knight Aigaron (Voice): Yū Mizushima (水島 裕 Mizushima Yū?)
- Funfilled Spy Luckyuro (Voice): Ai Orikasa (折笠 愛 Orikasa Ai?)
- Resentful Knight Endolf (Voice): Masaya Matsukaze (松風 雅也 Matsukaze Masaya?)
- Space Dark Species Absolute God Deboss (Voice): Tōru Ōkawa (大川 透 Ōkawa Tōru?)
- New Joyful Knight Killborero (Voice): Akio Suyama (陶山 章央 Suyama Akio?)
- New Sorrowful Knight Icerondo (Voice): Ryota Takeuchi (竹内 良太 Takeuchi Ryōta?)
- Narration, Transformation Gun Gaburivolver (Voice): Shigeru Chiba (千葉 繁 Chiba Shigeru?)
- Kyoryu Red - N/A
- Kyoryu Black - Parasagun + Parasagun (Armed On), Deinosgrander, Parasagun + Parasagun (Zyuden Brave Finish)
- Kyoryu Blue - Stegotchi + Stegotchi (Zyuden Brave Finish)
- Kyoryu Green - Zakutor + Zakutor (Zyuden Brave Finish)
- Kyoryu Pink - Dricera + Dricera (Zyuden Brave Finish)
- Kyoryu Gold - Pteragordon + Pteragordon + Pteragordon (Lightning Afterglow)
- Kyoryu Silver - N/A
- As part of Super Hero Time, this episode aired alongside Kamen Rider Gaim episode 15, The Man Who Developed the Belts.
- Last appearance of the Deinosgrander Armed On extension.
Zyuden Sentai Kyoryuger Volume 12 features episodes 45-48: Brave 45: It Can't Be, Dad! Silver's End, Brave 46: Big Shout Out! The Attack of Tears and Love, Brave 47: The Great Counterattack! The Greatest Final Brave and Brave Final: Great Explosion! Goodbye, Kyoryuger. 
- TV Asahi's official preview for ｢だいけっとう！ アイとなみだのいちげき
- Toei TV's official episode guide for ｢だいけっとう！ アイとなみだのいちげき｣
- Zyuden Sentai Kyoryuger January Episode Guide
- Silver Secret - Power Rangers counterpart in Dino Super Charge. See comparison page.
- End of Extinction - Power Rangers counterpart in Dino Super Charge. See comparison page.