The Cyclops

Susan Winter embarks on a perilous expedition to Mexico's remote wilderness, driven by her desperation to find her missing fiancé, Bruce Barton, whose plane crashed in the area. With the promise of uranium riches, she convinces wealthy Martin Melville to fund her journey. Joined by guide Russ Bradford and pilot Lee Brand, they venture into the unknown, only to crash-land in a treacherous valley. As they struggle to survive, they discover a nightmarish landscape teeming with mutated creatures, including giant insects, monstrous lizards, and a towering, deformed human male with a singular focus on feeding and defending his domain.