Bailey and a team of surgeons must remove a young girl's inoperable tumor; as the new head of trauma, Owen Hunt challenges the surgical abilities of the residents and the attending doctor's methods.
Susan gets some surprising news while on a romantic weekend with Ian; Lynette continues to support the family as Tom chases his dreams.
A building explodes while Patrick Jane and the team are investigating a death threat; Lisbon once again runs into billionaire Walter Mashburn (Currie Graham).
The team searches for a female serial killer who targets high-powered executives.
Raylan guides Ava through the process of informing on Boyd and tries to turn Boyd's old ally against him; Boyd works to pull off a daring heist right under Raylan's nose.