An ex-special services veteran, down on his luck and desperate for work, takes a job as a security guard at a run-down mall in a rough area of town. On his first night on the job, he opens the door to a distraught and desperate young girl who has fled the hijacking of a Police motorcade that was transporting her to testify as a witness in a trial. Hot on her heels is the psychopathic hijacker and his team of henchmen, who will stop at nothing to extract and eliminate the witness.

In the fourth installment of the fighting franchise, Boyka is shooting for the big leagues when an accidental death in the ring makes him question everything he stands for. When he finds out the wife of the man he accidentally killed is in trouble, Boyka offers to fight in a series of impossible battles to free her from a life of servitude.

After a Soviet space station crashes into a New York City subway tunnel, a species of venomous spiders is discovered, and soon they mutate to gigantic proportions and wreak havoc on the city.