Ted Kennedy's life and political career become derailed in the aftermath of a fatal car accident in 1969 that claims the life of a young campaign strategist, Mary Jo Kopechne.
When three parents discover that each of their daughters have a pact to lose their virginity at prom, they launch a covert one-night operation to stop the teens from sealing the deal.
Upon learning that their mother has been lying to them for years about their allegedly deceased father, two fraternal twin brothers hit the road in order to find him.