After surviving the Hunt on the Red Moon, Dane should have been happy to return to civilization, and, for a while, he was. But then he got bored. So when their proto-saurian friend Aratak asked Dane and Rianna to accompany him on a mission to a primitive world, where their fighting skills would be needed for the party's survival, Dane jumped at the chance. He should have remembered the old saying: Be careful what you wish for.
For the Hunters, the Hunt was a religion. The Sacred Prey, sentient beings collected from all over the galaxy, were literally given a fighting chance - they were allowed to choose weapons from an armory with every imaginable weapon and given time to train. Then they were taken to the place of the Hunt, where death awaited them. Those who survived until the eclipse of the red moon, however, were honored by the Hunters and rewarded with all the wealth they could desire. The trick, of course, was surviving.