As our team searches for the culprit behind the Koreatown crime surge, McKenna is triggered by memories from her experience in Iraq. Meanwhile, Syd discovers a tape of Jen with an unexpected client.

With the Koreatown shooter safely behind bars, our team catches a new case when a collegiate swimmer is found dead in what seems to be a hit-and-run. Meanwhile, Syd uncovers a new clue from Jen's past.