十名地球囚犯被流放在充满危险的星球XT-59，为了生存他们需要踏过大片沼泽地到达幸福岛，这个星球唯一的安全区，恶劣的天气和来自地下的恐怖生物是威胁他们生命阻止他们前进的最大障碍。Ten prisoners condemned to exile on a hostile planet XT-59 must pave the way through swamp to reach the Islands of Happiness, the only safe area on the planet, before the harsh climate or the underground horrors kill them all.
