When F.B.I. Agent Zack Grant's partner is killed during a blown-up operation, he attempts to find the person responsible. Mafioso Frank Serlano believes Zack is responsible for his only son's death in the same operation and kidnaps Zack's son to hold as bait. The action gets wild when airline stewardess Mary is taken hostage to add what seems another insurmountable problem for Zack. There appears to be No Way Out.