John Winger, an indolent sad sack in his 30s, impulsively joins the US Army after losing his job, his girlfriend and his apartment.

Led by their comedic and pranking leader, Newbomb Turk, the Hollywood Knights car gang raise hell throughout Beverly Hills on Halloween Night, 1965. Everything from drag racing to Vietnam to high school love.

The world's most famous madame is called to Washington to testify before Congress.