Island farmer Banana Joe helps the local community by trading his bananas for goods. When gangsters arrive with plans to construct a banana processing plant, Joe kicks them out, but the mob boss discovers that Joe is operating without a license. After the mob tips off the authorities and Joe's boat is impounded, he ventures into a big city for the first time to seek help.

A bumbling government agent recruits a trucker whose gambling knowledge can help crack an illegal Florida operation.