Crimson Force is based on the conspiracy and UFO-alien theories you'll find all over the Web about Mars. You know... The purported Pyramid and "Face" that NASA photographed on Mars and then later explained as a play of light and shadows. Cruise the Web and look at the photos -- interesting stuff. Anyway, whether there was ever life on Mars or not is irrelevant. The movie takes this premise, supposes that there was indeed intelligent life, and that it's still there. In fact, the life that's there might hold the key to the betterment of life on Earth.
The movie plays with this premise by creating an overall conflict between human astronauts and martian inhabitants, as well as conflicts within each group. Changing alliances, parallel running themes, twists, turns and double crosses accent a movie that's part action-adventure, part alien/government conspiracy, and part "popcorn" fun. The "science" is very sci-fi, but works within the explanations given. Thematically, the movie actually has something to say beneath its sci-fi veneer. The cast is a who's who of genre stars. Overall, Crimson Force is a fun ride!