After what appears to be another successful day on the job, John Weir's world is blown to pieces.

Triggered by the suicide of his friend and framed for the murder of Edward Homm, Weir tries to piece together what went wrong. The mysterious Hailey is sucked further into Weir's world as he tries to determine what role she played.

Weir's traumatic history is brought to light, along with the origin of his friendship with Valence.

Armed with the stolen data from Arda, Weir is in go-mode to unveil the truth behind Valence's shocking death and enlists Hailey's help to exploit a member of Crowley's network. Homm may finally be ready to cooperate and help find Crowley.

Is there a mole? Weir's team has been infiltrated, and he pulls out all the stops to locate the security breach.