An extremely intelligent Navy coder -- employed by Brody's mom (Annie Potts) -- is put in danger when the heart intended for him is stolen.
Colson is offered a transfer; guardians send Lambreaux home; Batiste takes his sons to a gig; Hidalgo returns to Texas; McAlary revisits his pothole.
Abraham must save Mitch and Chloe when they are abducted by a drug lord; the search for Evan Lee Hartley and the stolen evidence puts Jamie in trouble with the FBI.