Criminal American drama "The Oath" about a fairly familiar topic, when police are closely associated with bandit groups. In this series, Tom Hammond also leads a dirty double game. On the one hand, he is a wonderful cop, on the other - Tom is the head of a gang of criminals called "Ravens." In its composition, a decent part is composed of the guards of order. The series shows the real life of policemen, corruption in the bodies, there is real friendship, loyalty, and there is also betrayal. Detective Hammond naively thinks that nobody knows about his second shadow activity. An FBI agent enters the grouping at some point in time. Throughout the movie, the film leaves spectators in suspense and it is impossible to foresee at the outset how exactly fate will behave towards the movie heroes. The young agent manages to uncover and send to the bench defendants unclean by the hand of police Tom. But even while in prison, Hammond hopes for a very rapid return to the leadership of the "Ravens", hoping to get an early release.