Friendly Fires

When Danny is put on modified assignment after an incident in which he shot an undercover cop who failed to identify himself, he faces Internal Affairs investigators who begin looking to his state of mind on that day.

An old SEAL teammate of Sam's, with whom he has a tense relationship, asks him to help bring in a murderous fugitive with a history of preying on kids. In order to flush him out of the lawless barrio where he's hiding, Michael - posing as something close to the devil incarnate - and the team work to convince the morally-oriented local gang leader to help them. When trouble arrives in the form of a rival gang leader (Guest Star: Danny Trejo), the danger increases but it turns out to be a blessing in disguise, as taking him down will be mutually beneficial for both the locals and Michael's client, who patches things up with Sam. Along the way, Michael is able to quiet Gilroy's initial doubts that he is a good fit for the mission Gilroy's planning, even as Fi encourages Michael to try finding a life outside of work.