Lilly suspects a truck driver of murdering a hitchhiker for his casino winnings outside of Atlantic City.
The BAU team must determine if the anniversary of the Kennedy assassination is a motivating factor when a sniper strikes Dallas.
Violet looks to Sheldon for advice after a patient makes a chilling confession; Addison tries to hide her grief; Cooper and Charlotte adjust to their new life; Sam confronts Sheldon.
A woman desperately attempts to alter the outcome of the events of a day she is forced to relive again and again.