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Ben Campbell is a young, highly intelligent, student at M.I.T. in Boston who strives to succeed. Wanting a scholarship to transfer to Harvard School of Medicine with the desire to become a doctor, Ben learns that he cannot afford the $300,000 for the four to five years of schooling as he comes from a poor, working-class background. But one evening, Ben is introduced by his unorthodox math professor Micky Rosa into a small but secretive club of five. Students Jill, Choi, Kianna, and Fisher, who are being trained by Professor Rosa of the skill of card counting at blackjack.
21 - watch online: streaming, buy or rent
Currently you are able to watch "21" streaming on Netflix. It is also possible to buy "21" on Microsoft Store, Google Play Movies, Apple iTunes, Rakuten TV as download or rent it on Microsoft Store, Apple iTunes, Rakuten TV, Viaplay online.