Margaret reopens a teenage girl's missing-person case after an unidentified 4-year-old boy appears in the D.C. area; Lacey recalls a memory from her kidnapping that leads to a clue in the manhunt for Sir; Gabi makes plans to right her wrongs.

M&A investigates a potential hate crime when a non-binary activist disappears; Gabi's recollection of memories from the past opens up old wounds; Trent hones in on Sir's potential accomplice; Zeke crosses a dangerous line with the DCPD.