Erskine and Rhodes are assigned to track down Francis Jerome, an extortionist who has escaped from a federal prison in Pennsylvania. Erskine must also confront a number of personal issues when a woman involved in the case takes a liking to him. We're told Erskine's wife died "in an ambush meant for me." Francis Jerome also has a lot of personal issues. It turns out he is a psychopath who is killing young women.

Erskine and Rhodes are assigned to track down a bank embezzler. The title stems from the fact that Erskine recognizes traits he shares with the embezzler, such as the fact both men served during the Korean War and both are parents. The FBI sets a trap for the embezzler when he has, through an accident, left his young son behind while fleeing to Mexico.

A Native American, Joe Cloud, who served under Erskine during the Korean War, kills a man who was trying to rape his wife. Cloud flees custody and Erskine attempts to bring him in while trying to keep Cloud from harm.

Erskine faces problems in his personal life and at work at the same time. His 19-year-old daughter, Barbara, insists on marrying his partner, Rhodes, right now. This puts more pressure on Erskine, who already had misgivings. Meanwhile, assistant director Arthur Ward questions Erskine's approach to catching a bank robber. A man has already confessed to the crimes. But Erskine is convinced the illegitimate son of another bank robber is the real culprit.

Rhodes must confront his own emotions about an incident in his past as he investigates a spoiled young playboy accused of a murder on a cruise ship.

A pornographer that Erskine has been pursuing is about to flee the country. Before he can do so, the pornographer is kidnapped. Now, the FBI man has to smash the kidnapping plot. But if successful, Erskine will, in effect, help the man escape.

Erskine and Rhodes investigate a group of saboteurs in San Francisco. The title refers to the wife of one of the saboteurs. The wife, who is Japanese, is unaware of her husband's illegal activities.

In St. Louis, Erskine and Rhodes arrest a man they think is a notorious check forger. The arrest has been made with the assistance of an old friend of Erskine's. But the FBI investigator has doubts they've really arrested the right man.

Exiles from a South American country are trying to organize a coup of their former land. What they don't know is they have a mole among them. Erskine is assigned to infiltrate the exiles, who are based in Miami, by pretending to be a mercenary.

A deranged man is planning on destroying a U.S. test rocket. He has left a series of cryptic radio messages across the U.S.

In California, a gang has stolen weapons from the U.S. military. Erskine and Rhodes are assigned to capture the gang.

A man hijacks a plane bound for Seattle. He forces it to fly to Alaska, where it is to refuel before heading to Harbin, China. The hijacker turns out to be a U.S. scientist. Assistant Director Ward tells Erskine the man and his knowledge must not be allowed to reach China -- at any cost.

Roger Leroy Mason, a research chemist, cracks under pressure from both his job and personal life. He has sabotaged one facility of a chemical company that is interested in bidding on a process his firm has developed. That incident resulted in a massive fire. The FBI races to find Mason before other chemical facilities are destroyed.