A group of Apaches visits a cavalry fort in hopes of laying down their weapons and coming to a peace agreement, but Maj. Wharton (J. Ian Douglas), wanting to make a name for himself, orders his men to massacre them. Meanwhile, Col. Garrett (Kent Taylor) believes his flirtatious wife is sleeping with Capt. Thompson (Ben Johnson), so he tries to get rid of the captain by ordering him to track Victorio (Larry Chance), a notorious Apache warrior who's plotting a large-scale attack on the fort.