Yvette Saunders

When Rigsby's father (guest star William Forsythe) is found injured at a crime scene, the team must find out if it is the result of a longstanding small-town gang war. Former series regular Pruitt Taylor Vince returns as J.J. LaRoche. And Max Martini guest stars as former gang member Fletcher Moss.

Several of the doctors compete to be the new face of Seattle Grace; April brings an emergency case to the hospital; Alex and Jackson work with a transgender teen couple; new policies test the patience of the staff.

Sam finds himself in the midst of a dangerous house call; Pete and Addison decide to take their relationship to the next level; Violet enters a "friends with benefits" pact with Cooper.

On Hood Day, a day where gangs seek retribution, LAPD is trying to keep the peace by camping out in neighborhoods prone to violence. Sammy and Ben leave their assigned neighborhood with disastrous results. Meanwhile, the neighborhood grabs a golden opportunity to seek a little retribution of their own against the gang banger who has been terrorizing them. Elsewhere, John and Jessica discover that another group of neighbors will go to any lengths to get a registered sex offender off their streets.

Lydia and Ruben track the killer of a man whose body was slow cooked down to the bone. John and Lucero settle into their new friendship during a day filled with strange calls. Ben and Sammy respond to an insane bank robbery call in which the suspects throw cash out into the streets as they make their escape in a getaway car.