A freak accident endangers a man's life during the test of Mike's new method of retrieving sunken ICBM nose cones.

Mike tries to break a ring of drug traffickers who are smuggling heroin into the country in ballast tanks.

Working for the State Department, Mike attempts to rescue a political prisoner in South America by using a harbor city's canal system.

Mike responds to a ""man overboard"" situation, but an extensive search turns up no victim.

Mike must get past Jivaro Indians who are blocking his passage downriver as he attempts to get a young missionary's baby to a hospital for medical attention.