On a small freighter, Kimble is traveling to Alaska when an FBI agent, named Paul Vale, arrives and begins questioning him and all the passengers in a search for a Korean War criminal and traitor. Vale becomes most suspicious of Kimble, as well as passenger George Banning and his wife Adrienne whom are embezzlers fleeing the States. When Vale is found murdered the next day, Captain Carraway interogates all the suspects and when the captain discovers that Kimble's references are fake, Kimble becomes the chief suspect.

While working as a handyman in the predominantly Hispanic fishing village of Puerto Viejo, Kimble becomes aware that the area is beset with a plague epidemic and he's forced to call the state health inspector to have the entire area quarantined. But he soon finds himself trapped when the local doctor suspects his true identity and the irate villagers set out to find him.