When a nuclear-powered submarine, the Tiger Shark, sets out to investigate a series of mysterious disappearances near the Arctic Circle, its fearless crew finds itself besieged by electrical storms, an Unidentified Floating Saucer, and lots of hairy tentacles.
- Audio commentary by producer Alex Gordon and writer Tom Weaver
- New video interview with actor Brett Halsey
- Original theatrical trailers and radio spots
- Stills galleries featuring production and publicity photographs