The Best Episodes Written By Leigh Chapman

Anastas Poltroni is the head of an international narcotics syndicate, and has taken refuge in a country with no extradition treaty. The IM Force is assigned to lure him out without kidnapping him (to avoid the publicity). Cinnamon woos Carson until Briggs, pretending to be her husband, interrupts. Carson refuses to bribe Briggs, while Barney plants some of Carson's heroin in his own hotel room and tip off the police. The IMF ambush Carson and steal the heroin, and Carson later escapes. He grabs Cinnamon and follows Briggs to a deserted lodge to retrieve his own heroin. The police are hot on his trail, and he flees with Cinnamon still in his grasp. Thanks to confusing road signs altered by Barney, Carson ends up over the border where he is arrested and the heroin is taken into custody.

A stage coach carrying the western states entire supply of smallpox vaccine is attacked and the drug stolen. Furman Crotty, a convicted criminal serving time in Leavenworth, is demanding his release from jail with a full pardon and a ransom for the safe return of the drug. While Jim West, injured in the attack on the stage, struggles with amnesia, Artemus tries to find both his friend and the drug before a full-scale epidemic hits.