When Barbarax and the Swabbies repeatedly succeed in capturing mass amounts of Terra Venture citizens, Mike, the only one of the team to still have his identity unknown to the villains, plants himself in the next batch of captives. Infiltrating Captain Mutiny's encampment, he aims to free the overworked slaves personally. Meanwhile, Kai and Leo make a discovery about the Galaxy Book which might just get them out of the Lost Galaxy. But can Mike rescue the prisoners before that happens, or will this battle cost another Magna Defender his life?