A "National Geographic" film crew is taken hostage by an insane hunter, who forces them along on his quest to capture the world's largest - and deadliest - snake.

A "National Geographic" film crew is taken hostage by an insane hunter, who forces them along on his quest to capture the world's largest - and deadliest - snake.

In the Antarctic, after an expedition with Dr. Davis McClaren, the sled dog trainer Jerry Shepherd has to leave the polar base with his colleagues due to the proximity of a heavy snow storm. He ties his dogs to be rescued after, but the mission is called-off and the dogs are left alone at their own fortune. For six months, Jerry tries to find a sponsor for a rescue mission.

When a man-eating cave creature appears with a fortune in uncut diamonds around his neck, Dr. Chambers' daughter Denae hires adventurers C & C Salvage to find the underground source of the gems. Accompanied by archeaological intern Andrew Paris, mineralogist Prof. Strock, and C&C's scruffy owners Cort Eastman and Eddy Colchilde, Denea's hopes of emerging from her famous father's shadow become as remote as getting out of the caves alive!

A caving expedition goes horribly wrong, as the explorers become trapped and ultimately pursued by a strange breed of predators.

A caving expedition goes horribly wrong, as the explorers become trapped and ultimately pursued by a strange breed of predators.