Ep. 22: Astro Boy travels to Sea Serpent Island to save Anna but gets trapped by salt corrosion

22

Astro Boy journeys to Sea Serpent Island with the mission to rescue a girl named Anna, who has been taken captive. However, the situation quickly turns against him as he also becomes trapped on the island. Compounding his difficulties, the environment poses a severe threat to his mechanical form. The island is characterized by high salt content, which causes Astro Boy's body to begin rusting. This environmental hazard endangers his functionality while he attempts to secure Anna's release, creating a critical challenge for the robot hero as he fights against both captivity and physical deterioration.