When a group of corrupt cops known as The Ravens are arrested, they must induct an FBI mole into their ranks or face prison. It’s up to Raven leader Steve Hammond and brother Cole to hide the deal from the gang—including their imprisoned father, Tom—all while playing nice with the Feds.

With Tom's life threatened in prison, Hammond and Cole demand that kingpin Neckbone call off his dogs; the Ravens must hide the deadly truth about Sleep -- both from Neckbone and the Feds; Hammond yields leverage over agent Byrd.

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; the line between friend and enemy begins to blur for Byrd.

Beach's entanglement with Foster grows more dangerous by the day; after a shocking massacre of innocents, agent Price pressures the Ravens to track the source of WMD, a dangerous new street drug; Neckbone uncovers a new threat to his business.

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; newly released Tom stokes discontent with his son's leadership.

Tom's revenge against Winters risks an all-out gang war; with a fresh body on his doorstep, Neckbone gives Hammond a deadly ultimatum; father and son vie for control of the Ravens, creating a deep gang rift.