Mankind finds a mysterious, obviously artificial, artefact buried on the moon. With the aid of intelligent computer HAL9000, astronauts set off on a quest.
A U.S. Marine observes the effects the Vietnam War has on his fellow Marine recruits from their brutal basic training to the bloody street fighting set in 1968 Hue, Vietnam.
When soldiers in WW1 refuse to continue with an impossible attack, their superiors decide to make an example of them.