Set in the distant future, a rescue team are dispatched to a remote planet to locate the crew of a crashed spaceship. Their mission doesn't exactly go to plan though, as they damage their craft during the landing and find themselves similarly stranded.
Whilst the crew attempt repairs, a small group head out to see if they can find the survivors from the previous craft. Despite the planet initially appearing to be a barren wasteland of rocks and debris, they discover the wreck of the crashed ship has been torn apart by something unfriendly, which also massacred the crew.
Exploring further, they discover the ruins of a mysterious giant pyramid, which of course they decide to venture inside of. Whereupon they predictably starts getting picked off one-by-one by mysterious forces that seems to originate from their darkest fears.
One unfortunate chap, played by B-movie regular Sid Haig, is impaled by a bunch of crystal spikes, another ends up with his head removed, whilst one girl gets incinerated. Another (played by post 'Happy Days' actress Erin Moran) is squeezed to death by alien tentacles, whilst one very unfortunate girl (Taaffe O'Connel) is attacked by a giant maggot with tentacles, which removes her uniform covers her naked body in slime and subsequently tickles her to death (all done in the best possible taste)!!!!
Released to cash in on the success of "Alien", this low-budget early 80's B-movie by the infamous Roger Corman is surprisingly good considering its age, and explores themes which pre-date the likes of "Event Horizon" by several years. Whilst the effects may be cheap they are extremely effective, not to mention gory and it also features a surprisingly good cast, including Robert Englund and TV/movie actor Ray Walston and is definitely a film that lovers of low budget, gory B-movies will enjoy!!!