Binghamton (
Joe Flynn) is sent to a staff meeting in
Brisbane, Australia, and is forced to use the
PT-73 to get there after Fuji (
Yoshio Yoda) sabotages Lt. Carpenter's (
Bob Hastings)
PT-116. While in Brisbane, Binghamton orders the
PT-73 crew to remain on board, but they switch uniforms with Russian crewmen on the adjoining docked ship so they can leave the ship without being noticed. In a mix-up, Parker (
Tim Conway) switches uniforms with Lt. Harkness (
Ted Bessell), who then is mistakenly arrested by the Russian
NKGB and put on the Russian ship, but he later escapes and spends the remainder of the movie trying to get back to his post. Parker impersonates Lt. Harkness, with Binghamton helping him, until Harkness comes back. Because of Harkness' reputation as a lady killer, women are drawn to the very shy Parker. Parker also has to avoid Lt Harkness' father, General Harkness (
Tom Tully), for fear of being found out. In the meantime, Harkness (or rather Parker) is promoted three times to Lt. Colonel by unwittingly scoring three military victories. Even after being found out, Parker is by then too big a hero and the military brass decide to cover up the whole mix-up of Parker pretending to be someone else. At the end of the film, Parker performs an impressive impersonation of then-President
Franklin D. Roosevelt, much to the consternation of his
PT-73 crewmates. ==Cast==