Shafe's addiction troubles escalate. Meanwhile, Hodiak helps an old war buddy track down his blackmailer, Karn amasses information against Bobby Kennedy, and Grace finds a newfound passion for politics.

Shafe, alone at the bloody Tate crime scene, is confronted by his own demons. As Manson searches for a missing Emma, he ends up on Hodiak's doorstep. Meanwhile, Ken Karn goes to new levels for international diplomacy.