Build a movie plot around this: How did Joe find out about the banana plant's construction? Dorianne visited him in prison and told him.
The answer to this question is:
Bud Spencer plays Banana Joe, a brawny yet friendly man who lives in a small rainforest village called Amantido with a huge number of his own children and regularly delivers bananas to a South American river port (hence his name). One day, the henchmen of a local gangster boss named Torsillo come ashore in Amantido to initiate the construction of a banana processing plant. Of course, Joe (in typical direct-approach manner) evicts the goons, who promptly return to their boss.Torsillo finds out that Joe is trading bananas without a license and decides to exploit it. Upon his next delivery, Joe is apprehended by the police and given the choice of either acquiring a legal license or getting his boat impounded and himself arrested for illegal shipment. Joe travels to the nearest city, which to him is a new world, as he grew up in the rainforest. Unfamiliar with city life and only marginally literate, he falls prey to a con man named Manuel, who has a gift of the gab which has placed him in favor in several high positions, even with the country's President for his help in developing a remedy for a genetic defect in the Presidential family.Eventually Joe meets Dorianne, an attractive singer, in a bar owned by Torsillo, where he gets a temporary job as a bouncer. Torsillo also runs into Joe personally time and again, and after having seen Joe easily finishing off five of his toughest goons, the gangster boss has taken to jumping out of the next window in a panic the instant he lays an eye on Joe.In pursuit of his license, Joe finds out that he must get himself registered with the authorities in order to "exist" legally. Since he has no proper official records, however, this proves highly difficult, and the constrictions and loop-holes of bureaucracy provide no help in resolving the matter. Joe even has to enlist in the Army, but after driving his drill sergeant to the point of despair and even to degradation, he deserts and lands himself in prison when in his impatience he takes matters (literally) into his own...