In this side-splitting sequel to McHale's Navy, the antics of Ensign Parker are taken to new heights as he inadvertently joins the US Air Force and must navigate a series of hilarious misadventures. As he impersonates Lt. Harkness and scores impressive military victories, Parker finds himself in over his head, with General Harkness' reputation as a ladies' man causing chaos among the Russian crewmen. Despite being caught out, Parker becomes an unlikely hero, even impressing the President, Franklin D. Roosevelt, in a show-stopping impersonation.