The bones investigation uncovers the family's dark past. As Bosch's court case reaches a climactic verdict, he gets caught up in a dangerous field trip with Waits, who may be setting him up. A stunning turn of events leads to a frantic citywide manhunt, and Bosch is back on the hot seat.

As the Raynard Waits matter escalates, Deputy Chief Irving sidelines Bosch. The detective turns his focus to unraveling the mystery of the bones case - until he becomes ensnared in a dangerous game of cat and mouse.

Bosch travels to Las Vegas to see his teenage daughter, Maddie, and to gain insight into Waits from his ex-wife, Eleanor Wish, once a brilliant forensic profiler. Back in LA, Waits taunts Bosch as he begins backing up his threats. Bosch returns to a maelstrom as the simple questioning of a witness in the bones case endangers Brasher.