Alec and Marisa investigate a museum heist and a curator and his son might hold the key; the case raises ethical questions about the controversial practice of buying and selling cultural artifacts, which brings old memories for Marisa.

When a recovering drug addict goes missing, his girlfriend turns to M&A, but interference from outside forces complicates their investigation. Sir uncovers a shocking secret about one of M&A’s allies. One of the team members is critically injured.