Although they've found the gun that killed detective Walt Martin, Hildy and Terry aren't sure that his partner, Kaleb Peat, was the actual killer. The medical examiner finds an anomaly and concludes Kaleb's death was murder, not suicide. Hildy is still investigating the murder of Victor Chan as no one believes 12 year-old Jalil Thompson was the killer. Raffi Veracruz from the gang and tactical unit is upset and worries that Hildy's investigation will negatively impact her investigation into Sugar Cascade. Jamie Nelson visits Dustin Maker in hospital and decides to take his case. Molk and Jimmy McCormick continue the investigation into Sarah Tran's disappearance but the case takes a sudden turn.