Using ultra-advanced technology, scientists aboard Scorpio One have made a monumental discovery -- and paid for it with their lives. Now, with time and oxygen running out, Scorpio One is about to become ground zero for an explosive showdown high above the Earth, where the stakes are nothing less than the future of the world.

It was a brutal murder that sent deranged psychopath Martin Kagan to prison. It was a naive deputy warden that granted him a stay of execution. Now, the police department's tactical defence instructor, John Lomax, wants revenge for his beloved sister's death.

Dutton Hatfield, played by Jeff Speakman, is working for the American embassy. He finds himself inside a biochemical weapon laboratory when terrorists headed by Colonel Baron (played by TimeCop villain Ron Silver) take over the place. Baron is looking for a sample of a deadly virus that is being developed inside the facility.

Jeff, a young delinquent, is enrolled by his father in a kenpo school, in the hopes of teaching the boy some self-discipline. Years later, Jeff's mentor, Kim, is being threatened by one of the Korean mafia families. Jeff tries to help his old friend, but is too late to prevent Kim's death at the hands of an unknown hitman. Vowing revenge, Jeff takes on all of the families, using his martial arts skills to find the man who killed his friend.