Owen organizes a baseball game against Seattle Presbyterian; Lexie is unable to control her emotions when she sees Mark with a new woman; Alex fights for Zola; Richard talks to Meredith and Bailey about their feud.
Ritualistic murders lead the team to believe their suspect may have a fascination with the Salem witch trials and Garcia plans a Day of the Dead celebration.
The son of a once wealthy family is found dead in Central Park. As Castle and Beckett are working on the investigation his friends are trying to stop them.
In the first of a two-part swansong special, Michael and Sara wed. However, their happiness is shortlived when the latter is arrested for the murder of Christina Scofield.
After escaping from Sona, Michael and Lincoln are looking for justice against The Company, the group that has ruined their lives and is behind the death of Sara Tancredi.