When a cargo vessel is struck by a small meteorite the captain escapes, leaving the rest of the crew with a greatly depleted oxygen supply. With time running out it becomes apparent that there will only be enough air for one person to survive to safety. The crew react in different ways to this news.
Based on a short by Arthur C Clarke the set-up for this premise was never going to be totally lacking in intelligence. Unfortunately the cheap TVM delivery of the idea is so lacking in merit that it loses whatever intelligence the short may have had. The effects are poor (with one exception being the decompressing space suit) and the characters are poorly scripted. The end result is that the story is one that has been done much better in plenty of other films (from Hitchcock's excellent Lifeboat to the iffy Lifepod) and should have been left, rather than wheeling it out again to fill 90 minutes of network time.
The cast are poor - made up of daytime soap actors. In fairness they don't really have anything to work with. All the characters are stereotypes like in disaster movies - we have the coward, the nutter, the kind one, the quiet plotting one, the nervous rookie, even a dog to make up the check list! None of them are ever developed beyond the first scene and to be honest it's hard to care who lives or dies.
Overall this has some good moments, but the poor script, poor effects, poor characters and poor actors manage to almost ruin any merit this may have once had.