Caught in a drug scheme gone bad, pilot Thomas Chase volunteers for a short-run mission to the planet Fantasia to save his no-good brother Pete. Everything from synthetic heroin to MX7 is cooked on Fantasia, a rock planet terraformed to hide an elaborate drug manufacturing operation in protected caves guarded by the savage Aliens.
When Chase's craft touches down on Fantasia, a chain of events begins that can't be stopped. As criminals and competitors try to take over the drug empire from the dangerous kingpin, Tommy and Pete are caught in the crossfire. Outside the labyrinth of caves, Aliens scream for human blood.
- Aliens: Criminal Enterprise is one of several Aliens/Predator/Alien vs. Predator novels that were never officially published in the United Kingdom.