Friends Aldo, Giovanni, and Giacomo travel from north to south for Giacomo's wedding: the father of the bride, a tyrannical rich man who is both their boss and father-in-law—since Aldo and Giovanni have also married into the family—has entrusted them with a costly piece of modern art, one that looks just like a rather unremarkable wooden leg.
Con man Aldo breaks out of jail and seizes a car at gunpoint, taking its passengers—bumbling police officer Giacomo and nitpicking civilian Giovanni—hostages. An unlikely friendship blossoms.
