Jeremiah Birkett

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.”

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.

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.

Trick-or-treating with the 10-year-olds goes awry for Jack and Rebecca. Randall, Kevin and Kate have life-changing Halloweens.

Lori Colson has to defend a man accused of murdering a police officer when the firm must take a criminal case unexpectedly.