While investigating the suicide of a retired Navy officer who left a rare, valuable – and possibly stolen – coin to the National Museum of the Navy, the team imagines themselves in his life story in order to piece together how the coin ended up in his possession.

The team searches for answers when the body of a well-regarded Navy technician in the Reserves is found floating in a lake where a popular community event is being held. Also, Sloane is caught off-guard when her daughter, Faith, makes an unexpected request.