Heading deep into the heart of the South American jungle, Susan Stevenson (Ursula Andress) attempts to find her missing husband, and shed most of her clothes in the process! Dr. Edward Foster (Stacy Keach) accompanies on her quest, but the trip turns out to be more hazardous than they first anticipated when they encounter some particularly restless natives. It all adds up to an action-packed feature that shows of many of Andress's charms and natural on-screen charisma.