Jeremiah Birkett

The wedding day chaos continues as the entire party shifts from one contingency plan to another. Guests start to get testy, Mitchell and Cameron are feeling discouraged and poor Claire shows physical wear and tear, but an unexpected turn of events leads to the ceremony we've all been waiting for.

Mitch and Cam’s big day is finally here and nothing can ruin it, until nothing turns into a whole lot of somethings and puts wedding planner extraordinaire Pepper Saltzman to the test. Meanwhile, Jay and Gloria host the Tuckers, Phil squeezes in an eye procedure before the festivities and Claire embraces her role as “best woman.”

April's visiting sisters get on her nerves; when Matthew and Jackson witness an accident, they must work together; Callie and Arizona work on their relationship.

When two guards at a maximum security prison are murdered, the BAU team thinks one or more people within the prison walls may be responsible.

While the FBI refocuses their efforts to catch "The Man in the Suit," Reese's latest POI becomes a personal quest after he learns that she's the sister of a soldier who was killed in action.

Miller re-examines a case that has haunted her for years as she searches for the link between two murders that happened at the exact same time.