In the country of Valeria, the IMF must assure that the corrupt Nationalist party's rigged voting machine doesn't give them the election.

Josef Varsh plans to put an American on trial on false charges, discredit the West, and gain power. Rollin, disguised as Dan, meets with a woman who sold out her boyfriend/Western spy. Meanwhile, Briggs himself is with the Deputy Minister, a rival of Varsh's and a reformer. Rollin-as-Briggs leaves behind evidence implicating himself, and Varsh has the real Briggs arrested. Kudnov, who knows Dan is innocent, insists that Varsh let Briggs go, so Varsh orders him killed. The IMF team makes the Deputy Minister vanish - now they have to get the Deputy Minister and the girlfriend into court to testify and make Varsh look foolish.

Enemy operative Kiri has kidnapped U.S. envoy Carl Wilson and has an imposter, Gort, who is impersonating him to discredit a U.S. trade agreement. The team have to rescue Wilson and foil the impersonation before Kiri kills Wilson. Cinnamon impersonates Wilson's niece while Willy kidnaps Gort and Briggs-as-Wilson takes Gort's place, pretending to be Gort. The team put Gort in an asylum and give him electro-shock to scramble his memories, then claim he is is a delusional accountant. Under the threat of more electro-shock, Gort tells them the full details of his delusion: that he's to kill an American official and leave Wilson to take the blame. Barney and Willy replace the unconscious Wilson at the reception with a drugged Gort set to look like a suicide, then Briggs-as-Gort-as-Wilson takes a shot at the official. Briggs returns and reveals that "Wilson" is actually Gort, who was in Keri's employ.

The country of Santales sold a collection of Incan gold artifacts to save its economy, which were stolen by Jack Cole. Cole's accomplices are killed and Colonel Cardoza of Santales is in charge of extracting the location of the artifacts from Cole. However, Cardoza is a tratiro who plans to take the artifacts and leave Santales in financial ruin. The IMF must both recover the treasure and expose Cardoza. Phelps goes in as Cardoza's fence, and plots with the Colonel to get Cole to reveal the treasure. Phelps is thrown in with Cole, and they manage to escape thanks to Cardoza's set-up with Jim. Jim ""kills"" Rollin (disguised as an Indian) for his horses, and the Rollin reports to Cardoza's superior, General Diaz, that Cardoza is the one looking for the trasure. Cole takes Phelps and Cardoza to the trasure, and Cardoza kills Cole. As Diaz's men close in, Jim leaves via a helicopter, leaving Cardoza to try and explain why he has the treasure and was working with Cole.

In Spain, David Webster, a friend of Jim's, is framed for murder by his girlfriend. Acting on Jim's personal behalf, the team goes into action. Rollin and Willy, disguised as priests, hide Webster in his own cell thanks to a collapsible wall. The murdered man, Corley, had apparently stolen a Greek crown worth ten million dollars. Constantine, the financier for the theft, hires Jim to get the crown back. Rollin, disguised as Wsbter, confronts the girlfriend and she flees to her accomplice, who is killed in a fall. The accomplice is actually the dead man Corley, disguised with plastic surgery. The dead man, rendered unrecognizable due to a shotgun blast to the face, was a plant. They find the crown but must clear Webster. Rollin disguises himself as Corley and fakes an escape from the police which ends in a rigged car crash. The police, having it confirmed that Corley was guilty all along, recover the crown from where the IMF planted it in the car and go back to Webster's cell to find hi

The IMF must bring down Colonel Hans Krim, the head of a mercenary army who has a ton of loot in gold bars hidden away in an inaccessible enclave. Rollin enlists while Jim and Cinnamon pose as gunrunners with Willy and Barney hidden in their truck. Rollin fakes finding a cache of gold and is then tortured into revealing it. Krim ""kills"" Rollin and then coerces Jim into moving it without revealing the secret gold to his aides. Krim tells the guards to ignore the truck with what he believes his gold, unaware that Barney has melted the real gold belonging to the army, melted it down to remove it from the vault, and put in the truck. While Krim's suspicious aide Gruner kills him over the betrayal, Jim drives away with the gold and the hidden IMFers, immune to being searched because of Krim's last orders.

During a mission in a half Western/half Communist country, Cinnamon is caught and arrested after delivering information to the team. She is tortured and proves immune to everything except effects involving her claustrophobia. As intelligence officer Strom gets close to breaking her, Jim decides that the team must try and trade her for a valuable Eastern spy, Rudolf Kurtz. The IMF have to covertly get Kurtz out of prison, get him past the Western police, and get the information from him. The IMF fakes ""rescuing"" Kurtz and taking him to an office in the Eastern zone, where he gives up his information to superior officer Jim. Strom is forced to trade Cinnamon, but shoots both her and Jim during the exchange. Believing them dead and with Kurtz keeping silent about the information he spilled to protect his own life, Strom departs...as Jim and Cinnamon, wearing bulletproof trenchcoats, make their escape.

A scientist of an enemy power, Dr. Oswald Beck, has developed a bacteria which causes cerebral spinal meningitis and mutated it into a form that kills and then becomes inert after a few hours. The IMF must destroy the preliminary culture and stop Beck. Rollin replaces the prisoner chosen for a test of Beck's bacteria, and Barney switches the bacteria cylinder for one with knockout gas and then uses a balloon to capture the gas. Rollin ""dies"" but then Jim, who has infiltrated the base as a military medic, ""discovers"" that Rollin isn't dead. Meanwhile, Barney releases the knockout gas into the control room, knocking out Beck's superiors. Beck thinks they are dying from his bacteria and believes they'll think he's a traitor who tried to kill them rather than the test subject. He flees but is shot while Jim destroys the bacteria.

Carl Vandaam, a bankrupt European tycoon, is masterminding the theft of plutonium to make a hydrogen bomb and sell to the highest bidder. To keep such a bomb from falling into the wrong hands the IMF must stop Vandaam. Jim and Cinnamon get close to Kura, one of the bidders, by offering to bankroll him in return for oil rights. Vandaam demonstrates the bomb's plutonium core but afterwards Barney manages to steal the plutonium and replace it with an empty cylinder. Vandaam's aide discovers the theft and seals the building while Vanddam bluffs it out hoping they catch the thief before the bidding is over. Kura wins the bidding unaware that Cinnamon has planted a device in his money. Cinnamon insists they see the plutonium again, Vandaam is forced to reveal the theft, and Kura wants a refund. Cinnamon destroys the money by remote control. Kura has Vandaam shot while the IMF escape and summon the authorities.

General Zek of Karak is opposed to a peace treaty between his country and Agir, and is working with a munitions maker named Ismir Najiid to start a war by destroying King Said during his announcement of the treaty. The IMF must stop Zek and Najiid for good. The two conspirators hire Aristo Skora, a terrorist, to plant the explosives and incriminate Agir. Barney as a systems analyst sets up Najiid's factory's alarm system so Rollin can sneak in and steal the nitro from Najiid with Willy's help while letting himself be seen. Meanwhile, Jim has identified Cinnamon to Zek as an ally of ""Hakim"", the Agirian terrorist Rollin is pretending to be. Rollin and Willy grab the real Skora and then Rollin-as-Skora tells Zek their plan won't work. The IMF let Zek follow Cinnamon to an unconscious ""Hakim"" (actually a drugged and masked Skora) who has the nitro and a radio-controlled truck so Zek takes over his plan which he believes is the Agirians. Meanwhile Najiid has been drugged during Said's spee

Skarbeck and Lom are rivals for the vacant post of Chief of Secret Police in the East European Peoples Republic. As they are both hardliners, the IMF must eliminate both of them and make sure Paul Trock becomes the new chief. Skarbeck killed his lover Carlotta years ago but never found the man she was sleeping with. Skarbeck framed her costar and killed him in a car crash before having a breakdown. The IMF plan to trigger another breakdown. Cinnamon recreates Carlotta's act and admits to Skarbeck that Lom is paying her to him. Meanwhile, Jim sets up Lom with a letter proving Skarbeck killed Carlotta. Lom plans to nail Skarbeck for Cinnamon's murder. The IMF slip Skarbeck a drug to hypnotize him into thinking of Cinnamon as he did Carlotta. The IMF then trick Skarbeck into thinking Rollin, Cinnamons cabaret comic/partner, is having an affair with her, and that he is actually the murdered Fritz Mueller. Rollin tells Skarbeck that Cinnamon is having an affair with Lom. Skarbeck tries to k

Jim and a female agent pose as scientists who have invented a new drug in order to replace a real drug that turns people into willing slaves.

As Barney taints the water system with a mind-numbing drug, Jim is captured and put on trial, where he must discredit an enemy scientist.

An imprisoned priest is about to be executed, so Jim and Willie pose as U.S. religious workers who are willing to trade guns in exchange for his safety.

A 12-year-old king whose life is in danger is rescued by gypsies - Paris and Willie in disguise - and forced to dress up like a girl to fool his assassins.

A murderous dictator's belief in ghosts is used against him when Barney fashions a clever system that projects spirits of his dead victims before his eyes.

Jim and his team must infiltrate a prison in order to block the release of a ruthless Middle Eastern terrorist about to be pardoned.

While in London to break a spy ring, Paris develops feelings for the beautiful Lady Weston after he is cast as a jealous lover in a romantic triangle.

Barney kills a man in self-defense and is marked for execution by the victim's brother, a chief of police who heads a death squad.

When Jim returns to his hometown of Norville to donate family property to the community, he finds it plagued by a serial killer. Jim secretly brings in Barney to help investigate. A disturbed Vietnam vet is the suspected killer but Jim and Barney figure out he's innocent and get him out of jail one step ahead of a mob, then call in the rest of the IMF team to find the real killer.

Shanks and Blake are Syndicate men who run the loan shark racket in the Islands and are preparing to transfer $10 million to the mainland, leading to the Syndicate expanding their operations there. The IMF must stop the Syndicate's expansion. In Hawaii the IMF's in-and-out operation goes bad when Willy is captured and turned over to Dr. Matier, who injects him with a near-lethal truth serum. To get Willy out and finish the mission, Casey approaches Shanks and drugs him into helping the IMF steal the $10 million, while Jim approaches Blake and claims to be a Syndicate man from the mainland. The IMF make Shanks ""disappear,"" presumed dead, to convince Blake his partner sold him out. Then Casey wakes up Shanks and Jim and Blake confront him - Casey's fake ""confession"" seals the deal but then Syndicate man Barney fake-shoots Jim and Casey just as Syndicate man Bolt arrives. Confused, Bolt takes them all to Willy hoping his information will straighten things out. Willy manages to escape wit