Reformed criminal and former special ops soldier Pete Koslow (Kinnaman), in order to free himself from jail and return to his wife (de Armas) and daughter, has been working undercover for crooked FBI handlers (Pike, Common and Owen) to infiltrate the Polish mob's drug trade in New York. In a final step towards freedom, Koslow must return to the one place he's fought so hard to leave, Bale Hill Prison, where his mission becomes a race against time when a drug deal goes wrong and threatens to identify him as a mole.