21 is inspired by the true story of the very brightest young minds in the country – and how they took Vegas for millions. Ben Campbell (Jim Sturgess) is a shy, brilliant M.I.T. student who, needing to pay school tuition, finds the answers in the cards. He is recruited to join a group of the school’s most gifted students that heads to Vegas every weekend armed with fake identities and the know-how to turn the odds at blackjack in their favour. With unorthodox math professor and stats genius Micky Rosa (Kevin Spacey) leading the way, they’ve cracked the code. By counting cards and employing an intricate system of signals, the team can beat the casinos. Big time.
Seduced by the money, the Vegas lifestyle, and by his smart and sexy team-mate, Ben begins to push the limits. Though counting cards isn’t illegal, the stakes are high, and the challenge becomes not only keeping the numbers straight, but staying one step ahead of the casino’s menacing enforcer: Cole Williams (Laurence Fishburne).