Hungarian-Australian immigrant Gergely leaves behind his alcoholic father to enlist in the Vietnam War. On arrival, he is greeted by a friendly Private Carlile and a hostile Private Finch, before they are joined by a disorientated Sergeant Donaldson, who warns them of an impending ambush. Having taken antimalarials, they retreat but soon find themselves lost in the jungle, where they succumb to the drugs’ side effects.
