S1E29: Life-and-Death Struggle on the Rainbow Planet

A man learns little by little while in battle."The Mazone come attacking the Arcadia which has had too much free time lately. Tadashi, thinking he may find clues to Mayu's whereabouts, gives chase in a fighter and is wrecked on the Rainbow Planet. A Mazone civilian saves him. Believing their story that they escaped in search of freedom, Tadashi befriends the girl, Kirika. Though he's hated the Mazone up until now, Tadashi gives a grass whistle to Kirika and they quickly grow close. But then he sees that it was all a trap to get close to him. He's saved by Harlock in the brink of time and grows due to this mistake.