Why must they get out fast?

The hamlet is teeming with Viet Cong, and many of the Americans and ARVN die while attempting to secure it. Lieutenant Dongan is among the fatalities.

The South Vietnamese Army starts to move out from its camp, and the Americans follow. However, the North Vietnamese are closing in quickly and they are strapped for time. Before evacuating, the soldiers try to figure out what to do with the dead bodies.