Wilbur Walsh (Bud Spencer) and Matt Kirby (Terence Hill) are in Miami, looking for work as longshoremen, but the area is managed by shady dealers who refuse to give them a job, after which the dealers are beaten up and have three of their cars wrecked in the process. Walsh and Kirby meet up and then leave the dock, tired of looking for a job. Matt is particularly intrigued by the closed nature of Wilbur, who tries to avoid it in any way. Matt, after introducing himself, suggests that Walsh and he should work together on something he had been planning; the robbery of a supermarket. Walsh accepts, aided by Kirby's conniving ways to remove police attention, but by mistake the two end up in the police station and, to prevent being locked away, they say that they want to become police officers, which is granted.