Eddie, an indomitable Hong Kong cop, is transformed into an immortal warrior with superhuman powers after a fatal accident involving a mysterious medallion. Eddie enlists the help of British Interpol agent Nicole to determine the secret of the medallion and face down the evil Snakehead who wants to use its magical powers for his own nefarious plans.

Five friends embark on an epic road trip, but when one friend disappears at a rest stop, their search brings them face to face with a violent biker gang. After a narrow escape from death, their nightmare goes from bad to spine-chilling when they find themselves being stalked in an abandoned town.

A series of unexplainable accidents befall the people and companies responsible for developing the world's first supersonic airliner (SST1). A British agent is sent to investigate and with the help of another agent uncovers a plot masterminded by Carl Petersen who stands to gain eight million pounds if the aircraft is not ready by a certain date. The evil Petersen has developed a number of "robots" (actually rather beautiful girls with "electronic brains") to help him sabotage the SST1 project by means of "infrasound" (extreme low frequency sound waves) which can be directed at people or objects with devastating results.

Lost deep in the forest of the Pacific Northwest, Ashley and Max Carr are stalked by a terrifying creature that might be Bigfoot. Soon they find themselves embroiled in a strange land of Native American myth and legend turned real. Hopelessly trying to survive, with a handful of unsavory locals, they must fight back against this monster in a desperate battle of life or death.