The crew of a a rescue mission to a hostile planet find themselves being picked off by mysterious forces.

Cheap and cheerful Alien rip-off with a not bad twist. Will feel 80s dated. I thoroughly enjoyed the thing on video back in the day though, the imaginative death scenes make it (not to mention Taaffe O'Connell getting naked whilst wrestling a giant slug). Titanic director James Cameron was part of the production crew.