Grace exposes Ethan's lies about the night of Cheat's death; Leni learns how Ethan and his team met; Detective Lee follows Ethan; Ethan and the team sense trouble; Billy and Evie bond.

A figure from Grace's past returns without warning, complicating her relationship with Ethan; Leni gets an crucial update from her Pentagon contact; Grace learns of Billy's fight; the task force listen in on Ethan and his team.