The stooges are taking care of their invalid friend Mary who is confined to wheelchair. At their jobs in a theater, where they hope to earn money for an operation for Mary, they witness a hypnotist, doing his act. The stooges become subjects for his show and are hypnotized into walking out on a flagpole high above the ground. When they come out of their trance and realize their predicament they fall into a window and foil a robbery in progress thus earning reward money to pay for Mary's operation.

China Valdes joins the Cuban underground after her brother is killed by the chief of the secret police, Ariete. She meets and falls in love with American expatriate Tony Fenner. Tony develops a plan to tunnel under the city's cemetery to a plot owned by a high official, assassinate him, and blow up the whole Cuban hierarchy at the ensuing state funeral. Together with a band of dedicated revolutionaries, they begin digging.