Former major league baseball player Moe Berg lives a double life working for the Office of Strategic Services in World War II Europe.

Mild-mannered Paul Blart has always had huge dreams of becoming a State Trooper. Until then, he patrols the local mall as a security guard. With his closely cropped moustache, personal transporter and gung-ho attitude, only Blart seems to take his job seriously. All that changes when a team of thugs raids the mall and takes hostages. Untrained, unarmed and a super-size target, Blart has to become a real cop to save the day.