14 Episodes · Premiered September 20, 1975 · Ended January 3, 1976
A former secret agent, now a private investigator, is hired to protect a beautiful film star and gets involved with gun runners. Detective Jerry is about to reveal to Maggie the results of the investigation she entrusted to him. It is then that he is shot dead, before the eyes of Maggie, herself being pursued by gangsters who miraculously spare her. She asks Claire Kronski, a lawyer, and Matt Helm for help. Maggie tells her story: her father was murdered when she was six years old. He was an officer and had discovered the clandestine activities of one of his sergeants. She has sworn to avenge her father and wants to find the culprit. He would be living in the United States under a false identity and would have altered his face...
Helm sets out to find an air freight company executive who disappeared after deciding to terminate his involvement with a drug smuggling ring. In the premiere episode, Matt Helm's search for an airline owner in hiding after his car was bombed, leads him into the dangerous world of international drug smuggling. Helm, hired by Paula Sydon to find her missing father, is unaware that Sydon'is involved with Jack Harte, a pilot friend, in flying Illegal drugs from Mexico and wants out. Meanwhile, powerful attorney Oren Bates, the mastermind behind the illegal operation, vows to make an example of Sydon to prove nobody gets out alive.
Helm is hired by a charming socialite with a dual personality to investigate a murder that she may have been committed while acting as her other self.
After the lawyer who was helping her find her natural parents is murdered, an adopted woman turns to Helm for help.
Helm investigates the death of a tycoon who was going to be a player in the highest stakes poker game of all time.
Helm agrees to help an old friend find his business partners, unaware that they had been involved in diamond smuggling. Former associates of Matt Heim, Paul Gallagher and Jed Larson, are now working together. One day, driven by a need for money, the two men attempt to intercept a shipment of diamonds worth one million dollars. The stones had been smuggled into the country by billionaire Fred Buckman.
An old associate of Helm's becomes a hit man's target for no apparent reason.
Helm investigates the kidnapping of a prized stud horse and the murders of the three men who had been watching the horse.
Helm discovers a seriously wounded woman on the beach, only to find her gone when he returns with help.
After clearing a businessman of murder charges, Helm discovers some new evidence that points to the man's guilt.
Matt investigates the death of a research scientist who was found frozen to death after an apparent skiing accident.
While searching for a woman who was involved with a $250,000 robbery, Helm finds himself being trailed by her cohorts who are hoping he will lead them to the loot.
Record pirates murder a detective friend of Helm's who had been hired to investigate possible piracy by a suspicious musician.
With Helm out of the country, Kronski must work alone to uncover evidence to prove that her client did not murder her husband.