The crew of the Phoenix have escaped the dark planet, and now need to complete their mission to return Prince Onix to his home planet - without them knowing. But their plan is foiled and the Xions capture them soon after landing. They are asked to choose their punishment: 1) Be ejected into space in a pod that orbits Xion forever 2) 20 years hard labour in one of their mines 3) Fight the deadly Xio-bot. They choose to fight the Xio-bot. It's their only chance to make it back home again - but no one has beaten it . . . yet.