One Piece — Episode 980: A Tearful Promise! The Kidnapped Momonosuke!

You are watching the episode A Tearful Promise! The Kidnapped Momonosuke! Swept away by Kanjuro, Momonosuke remembers his father, tries to rise above his fear, and speak to his allies. Luffy and the others start heading for Onigashima, but Kaido’s army gets in their way again with a formidable weapon. However, a surprising figure comes to help the cornered Straw Hats.