Avenged (2013)

When Chili Ngcobo, an honest but ambitious undercover cop, is cheated out of a major reward by his corrupt superiors, he infiltrates a cash-in-transit heist gang, and instead of busting them, he decides to participate in a one-off score. He must face off against his partner, who refuses to let him do it, and one of the gang members, who recognizes him as a cop.