It is the year 2020 and NASA has just performed its first manned landing on Mars. But when the crew head out to explore a mysterious mountain in the Cydonia region they are hit by disaster and communciations with NASA control soon breakdown. A second mission - lead by Woody Blake (Tim Robbins) and Jim McConnell (Gary Sinise) - is then dispatched, both to investigate what happened and to recover any survivors. As they move across the Martian landscape, getting closer and closer to the site of the earlier disaster, nothing can prepare them for what they will find there. Director Brian De Palma's first entry in the science-fiction genre vividly imagines what a manned mission to Mars might be like and includes what could be the finest, most suspenseful spacewalking sequence yet filmed.