Based on a true story, James Coburn portrays a military lawyer assigned to defend a confessed psychotic killer. Set in the context of WWII and the uneasy US-Australian military alliance. The accused killer claims to have killed 3 women in order to possess their voices. Despite the defense lawyer's concerns that the killer is not fit to stand trial, the US military presses forward with the case and its desire to have the killer executed in order to strengthen the shaky alliance.

A Marine patrol stops at Firebase Gloria at the start of the Tet Offensive during the Vietnam war. With the firebase attacked, the patrol remains to help defend it.