The IMF must get hold of a horde of Nazi gold through four young men, sons of Hitler's top aides, who are sent to Switzerland to meet for the first time and pool their parts of the ""puzzle"" together. One of the men, the only one known to them, is replaced by Rollin. Each has part of an account number, and the team needs to hypnotize and trick the bank manager into giving them the complete account # and then slip it to Rollin. The bank account contains an envelope with a microdot, which when combined with a slide in each man's pocket watch provides the location of the treasure. After seeing the other men's slides, Rollin fakes the loss of his watch, then he and the rest of the team head to the cemetary. Two of the men figure out the puzzle from their pieces and follow. In a gunfight Dan is wounded, but one of the men is killed and the other runs off rather then face Rollin's wrath. The gold turns out to have been made into a crypt, and is recovered.

A plan to devaluate U.S. currency was concealed on a valuable emerald by a U.S. spy, and the emerald was inadvertently obtained by Victor Tomar, an international arms dealer. Tomar is traveling by ship, as is Yorgi Petrosian, an enemy agent sent to recover the emerald. Rollin as a card shark gets together with Petrosian and they make a deal - Rollin will cheat Tomar and give Petrosian the gem and keep the winnings. Cinnamon tricks Tomar into getting to a game when Jim pretends to take her expensive bracelet. Tomar loses to Petrosian, but Rollin double-crosses Petrosian and gets the cash and the emerald. Petrosian tries to kill Rollin but Willy knocks him out and they fake that he's been lost overboard and found by a passing trawler. Petrosian wires a message to his aide, William, to kill Petrosian. Then they knock out Petrosian, put him in Rollin's cabin with a mask, and Williams kills Petrosian-as-Rollin and disposes of the body.

On holiday and going to meet Rollin at a mountain lodge, Jim stops off in a small town. However, a young couple drop a package containing a gas gun. Exposed, an old man named Doc takes Jim prisoner. The town is populated entirely by enemy agents and they plan to kill a Societ defector in L.A. Doc shoots Jim with curare and the young couple head off to kill the defector. When Rollin arrives, Doc claims Jim had a stroke and can't be moved, but Jim clues him in by blinking a warning in Morse code. Rollin mobilizes the team. Cinnamon goes in as Mrs. Jim and Barney as her chauffeur, and Willy as a trucker. Together the four of them have to get Jim out and thwart the assassination plot.