British pop sensation "Jeep" Jackson's (Anthony Newley) career is in high gear when he's notified he'll have to do a two-year tour in the army. Of course the musician isn't well suited to the military life, and his antics wreak havoc on the patience of commanding officer Sergeant Lush (William Bendix). Will Jackson defeat the military with his singular personality or will a truce allow the army to soldier on? The film's title song and "