A young gay man grows increasingly entangled in the marriage of an older couple.

An elite commando squad led by longtime soldier buddies Hawk and Grives run afoul of lethal and powerful vampires in a South American rain forest. Grieves gets turned into a vampire and becomes leader of a savage roving herd. Moreover, Hawk has to rescue his scientist ex-wife Dr. Laurie Williams from the bloodsuckers' evil clutches.