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.

A rogue assassin is taking out military leaders, and Brandon gets word that his father is one. He tries to track down the killer, finds out that his father isn't dead and realizes that his superior officers are using him as bait to t