As Harm now has custody of Mattie, PO2 Jennifer Coates agrees to move into an apartment down the hall from Harm. Admiral Chegwidden looks into why the diamond he gave to Meredith for their engagement ""just doesn't look right"".

Sadik Fahd who held Mac & Webb captive in Paraguay at the end of last season, shows up in Washington, DC and Mac has to wonder what he's up to when he begins to contact her.

Harm temporarily loses his hearing when the car battery on his Corvette explodes while he was working on it.