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.
In the first of a two-part series finale, Michael and Sara wed. However, their happiness is short-lived when the latter is arrested for the murder of Christina Scofield.
Ritualistic murders lead the team to believe their suspect may have a fascination with the Salem witch trials; Garcia plans a Day of the Dead celebration.
Michael, Lincoln and company reunite to break out increasingly vulnerable Sara.
Castle and Beckett uncover a story of betrayal and obsession when they investigate the death of a teenage boy.