在艾伦他们居住的帕拉迪岛之外，还存在一个其他人类居住的世界。当中一个国家「玛雷」与其他各国爆发战争。陷入苦战之际，他们决定要攻进帕拉迪岛，把「始祖的巨人」抢过来。在这里又看到另一群孩子们拼命求生存的身影……
A team of four aliens escape their exploding home world only to crash land into a move-in ready home in suburban America. They are evenly split on whether Earth is awful or awesome. Korvo (Justin Roiland) and Yumyulack (Sean Giambrone) only see the pollution, crass consumerism, and human frailty while Terry (Thomas Middleditch) and Jesse (Mary Mack) love humans and all their TV...
