The residents of Seattle Grace and Mercy West vie for their careers as the hospital merger begins; Arizona stands by enraged Callie when Callie's father employs a priest to help convince her to date men.
The residents of Wisteria Lane take stock of their lives after tragedy; Susan grows suspicious of Mike's reasons for moving to the neighborhood; Lynette reaches the breaking point in her addition to the twins' medication.
On the first season finale, Lisbon fears that the serial killer, Red John is drawing Patrick Jane into a trap when the CBI team investigates the murder of a young girl and the abduction of her twin sister.
When a predator sets its sights on friends of Sgt. Wu, Nick and Hank must figure out how to deal with him as the investigation escalates; Adalind prepares for a special delivery.
Looking back at how Chimney joined Station 118 and became the firefighter and paramedic he is today.