 Equipped with a motorcycle-sidecar combination Arcovazzi picks up the professor and heads towards the Eternal City; along the way the couple wrecks its vehicle to avoid running over a girl (Stefania Sandrelli) who turns out to be a confidence trickster and petty thief; and, after having scammed the professor out of 150 lire, she disappears.Without a means of transportation Arcovazzi asks a truckload of Wehrmacht soldiers passing by to help, only to have his sidecar confiscated and be made prisoner (along with his original prisoner) by the German forces.Ending up in a Nazi-controlled jail the couple makes good its escape thanks to an allied air raid, donning German uniforms to pass unnoticed during the commotion but, while Arcovazzi is stealing a Schwimmwagen Bonafè tries to desert him.