The Oath

When a group of corrupt cops known as The Ravens are arrested, they must induct an FBI mole into their ranks or face prison.

With Tom's life under threat in prison, Hammond and Cole demand that kingpin Neckbone call off his dogs.

A text message from beyond the grave puts the Ravens on edge. Neckbone uses extreme methods to pressure the Ravens into revealing Sleep's fate.

Beach's entanglement with Foster grows more dangerous by the day. Agent Price pressures the Ravens to track the source of WMD, a dangerous new street drug.

Beach hangs Foster out to dry, putting the Ravens and the Vipers in a position of mutual self-destruction. When Sleep's body is found, Neckbone sets a bounty on WMD ringleaders.

Tom's revenge against Winters risks an all-out gang war. With a fresh body on his doorstep, Neckbone gives Hammond a deadly ultimatum.

After Hammond and Cole's worst fears are realized, their search for Neckbone escalates. Byrd pursues WMD's shady connections with big pharma, but gets no help from the Bureau.

When Hammond and crew track Neckbone to his hideout, a shocking scene awaits. Just as the Ravens find themselves beset on all sides, yet another enemy comes back to bite them.

In the tense season finale, the Feds descend hard on the Ravens. Hammond is ready to sacrifice himself, but Beach has an ace up her sleeve.