Grace is on a special FBI Taskforce for a prostitution ring. Her home life is about to be complicated by her mother, Vivian, who shows up after a long absence. Tom has something to say to Grace. Ethan and team negotiate their first contract.

Grace and team start search for Sarah after getting her cry for help voice message. Elliot lets Leni in on detail about the investigation. Cheat's partner's deal with aftermath of his death by eavesdropping in on police calls.

Someone from Grace's past visits her, which creates a problem with Ethan. Leni's Pentagon contact reveals new information. Grace finds out about Billy's fight. The taskforce plants a bug to spy on Ethan and his team.

A panicked Spud seeks Ethan's and Ray's help and hatches a plan for leaving town. Grace shares what she learned about Ethan with Leni and Elliot. Alec attempts to alter his deal with Campbell. Elliot makes an arrest which creates problems.

Ethan tells Grace they borrowed money from the wrong men. Suspicious, he checks out her background. She tries to help Billy but it backfires. Ray realizes something is wrong with Spud, and they have a heart-to-heart talk.

Leni and Grace make a surprise discovery in Vancouver. The truth about Cheat's death is revealed. Ethan and Ray follow their own leads to Vancouver and disagree about what to do with the money. Evie decides to stay with Tom.