An American submarine leaves Tierra Del Fuego, and one of its crew has secretly brought aboard a container full of poisonous snakes which escape storage and bite key personnel on the submarine, causing an accident that cripples the vehicle so that it drops to the bottom of the Southern Ocean. Worse still, the snakes are still at large on the submarine and complicate the efforts of the crew to escape the sunken vessel.
David Janssen
Russ Bogan
Hope Lange
Elaine Wedell
Ivan Dixon
Joe Voit
Jason Evers
Commander Kirk
Charles Robinson
Lieutenant Nicholson
Ben Piazza
Lieutenant Whitehead
George Pan Andreas
Torquale
Sherry Boucher
Liz McCord
Robert Ito
Masai Ikeda
An American submarine leaves Tierra Del Fuego, and one of its crew has secretly brought aboard a container full of poisonous snakes which escape storage and bite key personnel on the submarine, causing an accident that cripples the vehicle so that it drops to the bottom of the Southern Ocean. Worse still, the snakes are still at large on the submarine and complicate the efforts of the crew to escape the sunken vessel.
On a trip to Colombia, a group of college students encounter a fifty-foot boa constrictor, hungry for blood.
A news team is sent to Burundi to capture and bring home a legendary 25-foot crocodile. Their difficult task turns potentially deadly when a warlord targets them for death.
A rag-tag team of divers attempting to salvage a sunken car from a river are thwarted by a highly aggressive bull shark.
After an earthquake destroys their underwater station, six researchers must navigate two miles along the dangerous, unknown depths of the ocean floor to make it to safety in a race against time.
Two millennia ago, a Lybian king has a basilisk (snake-shaped dragon), which petrifies people, subjected to the same fate with a golden scepter during a solar eclipse. Both these and several victims are dug up by modern archaeologist Harrison 'Harry' McColl's expedition. Despite a cryptic warning from tribal locals, everything goes to his Colorado university's museum. It's all exhibited during another eclipse, which leads to the monster reviving. Harry and some of his friends must try to petrify the monster again.
A brother and sister's journey into the jungle to find their missing father.
Distraught, confused, and half-wild with fear, Sarah Carter emerges alone from the Appalachian cave system where she encountered unspeakable terrors. Unable to plausibly explain to the authorities what happened - or why she's covered in her friends' blood - Sarah is forced back to the subterranean depths to help locate her five missing companions.
A small team of scientists must race against time to stop what seems to be a cascade of global disasters signaling the possible apocalypse and end of days.
A young married couple and their daughter are terrorized by a pride of ferocious feral felines.
A close friend of MacGyver is murdered. In searching for a reason for this assassination MacGyver discovers a secret nuclear weapons plant right in the center of Britain.