Peter Churchman stopped robbing banks a long time ago and is now living as a wealthy and respected citizen in Pampelona, Spain. But then his former companion Angela appears and blackmails him to help her robbing the Spanish National Bank of Pampelona. He gives in and develops a brilliant plan... Will this be then end of his comfortable life?
During World War II, bomber pilot Peter Churchman accidentally destroyed a French cathedral while on a mission to Germany. Following the war, he and his crew robbed several banks in Germany to pay anonymously for the restoration of the cathedral. Having later become a respected restaurateur in the Spanish town of Santa Maria, Peter thoroughly enjoys both his position and his relationship with another American expatriate, Grace Harvey, to whom he is engaged. One day he receives a visit from Angela Tresler, a wartime accomplice, who threatens to expose his past unless he masterminds and executes the robbery of the bank at Pamplona during the annual Fiesta of San Fermin. Moreover, Angela has sent for Peter's bomber crew and coerced them into also joining in the venture. Forced to yield to her demands, Peter and his crew, accompanied by Grace, travel to Pamplona. As the fiesta begins, the men tape explosives and tools to their chests and join the local male populace in the traditional running before the bulls through the narrow town streets. As they reach a storeroom adjoining the bank, they dash into an alley, break into the basement, and blast their way into the bank, synchronizing the explosion with a cannon blast from the bull ring. Once inside the bank, Peter crawls along a high ledge, disconnects the alarm system, and opens a vault containing the jewels intended for the adornment of religious statues used in the procession. As planned, the gems are passed through a transom into a huge hollow carnival statue carried by one of Angela's accomplices. Peter and his cohorts escape to safety, but they discover that Angela does not have the jewels. Acting on her own, Grace hid in a duplicate carnival statue, took the jewels as they were passed through the transom, and turned them over to police inspector Gonzalez to embellish the shabby and weathered statue of the Virgin of Santa Maria. Enraged, Angela leaves Pamplona as Peter and Grace join in the fiesta.