Luke Horton, a successful young man goes missing from his high school reunion. Because of the timing of his disappearance, the team initially suspect that old school rivalries may be to blame. However, when information surfaces that suggests the missing man may have been having troubles both at work and in his personal life, they are forced to consider that his disappearance might have been of his own making. When Danny and Samantha discover what may be a suicide note at a local motel, they begin to search the local area for a body. Upon closer inspection however, the team realise that the note is in fact the man's way of telling his wife a devastating secret that would effectively end their marriage. Telephone records and witness accounts lead the team to one of two remaining suspects and they must work with both to get to the truth.