Thirty years after they served together in Vietnam, a former Navy Corpsman Larry "Doc" Shepherd re-unites with his old buddies, former Marines Sal Nealon and Reverend Richard Mueller, to bury his son, a young Marine killed in the Iraq War.
Tensions flare in the near future aboard the International Space Station as a conflict breaks out on Earth. Reeling, the U.S. and Russian astronauts receive orders from the ground: take control of the station by any means necessary.