Over 24 hours, on a patch of desert in American-occupied Afghanistan, four U.S. Army Reservists are stuck on a meaningless mission guarding a radio tower. Dying of boredom rather than enemy fire, the monotony is broken when the U.S. Air Force mistakenly airdrops a keg of beer and these weekend warriors embark upon an afternoon of booze, banter, and bonding. But as night falls, the reality of war interrupts the drunken respite, as an Afghani militia attacks their station.