The CBI team investigate the double homicide of Selby and Jana Vickers; a couple murdered on their way to Selby's 15th high school reunion. The CBI team attends the reunion to gather information. Patrick soon discovers a link to an old high school prank - Selby pulled a cruel prank on Derek Logan back in high school. Due to that incident, Logan has not been seen in years. Rigsby goes undercover posing as Derek Logan and everyone is surprised by his attendance. L.J. and Willa become very uneasy after Rigsby states that he has come to the reunion for his revenge. Lisbon and Jane follow Willa out of the room and discover after locating her "trophy" picture that Selby pulled the prank under her direction. Willa decided to kill the Vickers after Selby began blackmailing her to jeopardize her upcoming national talk show.