Meghan Maureen McDonough

The doctors are faced with the consequences of the events at April's wedding; Alex reacts to the news about his father; Callie and Arizona make a decision about their relationship.

When Barney and Quinn start living together, Barney's reluctance to throw out any of his old possessions makes the gang doubt his faith in the relationship. Ted, Marshall and Barney hold their triennial `trilogy time' event, at which they watch the `Star Wars' film trilogy and try to picture how their lives will have developed in another three years.

Edison Davis introduces the worried parents of a missing college student to Olivia. Their daughter has been writing a racy blog about her exploits in the bedrooms of Washington DC's political heavyweights.

The crack BAU team get inside the head of a murderer who struck in different cities within a matter of hours and find a cryptic connection between the victims.

When Goodwin receives financial complaints from the hospital board, she is forced to implement new guidelines that cause headaches for the doctors.

A city could erupt in unrest when a police officer's body camera is hacked and the footage goes viral.