Kilmer plays Gallagher, an eccentric mission engineer who has designed a robot to help navigate the Martian surface. Moss plays the mission commander who has had a long career in the Navy and loves to hang with the guys. Sizemore plays a geneticist who knows a lot about the science side of the mission including the algae sent onto Mars' surface. Upon arriving around Mars, the astronauts are thrown into jeopardy and Moss commands her crew to abandon ship. As she watches her crew escape she decides to stay behind in a last desperate effort to save her ship.
Planet is very raw.
Like Apollo 13, we have a lot of desperation in trying to find a little piece of something that could help to save the mission. I liked this tension and the appearance of no safety net as the astronauts fight to survive. I loved the unique robot created by Kilmer and how it becomes a threat on the planet. The real sad thing I found about Planet was how they used a lot of hokey ways to get out of tension sequences. One example was when the crew can't communicate with their ship so they decide to walk over and find a probe sent to Mars back in 1997.