Kevin Bundy

When the SRU arrives at a hostage situation at a bank, Sgt. Parker faces one of his toughest negotiations when the robber isn't who he thought.

With his nurse's help, a one-time star athlete escapes a mental institution, and sets out to see that others involved with him in an old caper, see justice. It seems he took the fall for the conspiracy of others, but didn't realize that his incarceration would endure so long, and felt used.

It's "back to basics" for 15 Division when Staff Sergeant Frank Best decides it's time for his officers to get back on track. After a death threat aimed at a local priest leads Andy and Nick to a neighborhood drug kingpin, the officers realize they're navigating a delicate war zone with a surprising connection.

When Dr. Sam Griffith (Sophia Bush) refuses to concede her role as chief, her father Griff (Jason Isaacs) orchestrates a costly surprise. Also, Sam's mother, hospital administrator Vivian (Wendy Crewson), turns to her new spouse, therapist Asher Pyne (Sendhil Ramamurthy), for help navigating the battle between her daughter and ex-husband.