Antonio finds himself getting close to the Salvadoran Detective, Marcella Gomez, only to learn she has a hidden motive for being in Chicago. Meanwhile, Voight learns that the body of his son's killer has been found.
The NCIS's Office of Special Projects takes on the hard to crack cases in LA.
Dealing with the losses of a drug war, Teresa and Dumas finally strike a truce.
On her day off, Teresa is hunted by a sicario from her previous life while on the road.
An FBI informant threatens Teresa's growing empire while she deals with turmoil within her family.