Synopsis:
A serial killer starts stalking Internet sexual predators and murdering them to stop them from hurting young girls. The team tracks the killer and discovers that it's the wife of one of the murder victims. Meanwhile, as Larry prepares for his NASA mission, he gets a call telling him he's not going to be able to go after all. Charlie makes a call and vouches for him, and NASA decides to let him go. They family has a send-off party for Larry.
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