Dexter becomes further involved with Arthur Mitchell’s family and lets Jonah know that he’s tracking them down; whereas Jonah suspects Arthur’s (and Kyle Butler’s) demons, others don’t. Deb suspects Christine Hill of shooting Frank Lundy. Her exchanges with Hill only serve to accentuate that the two of them are no different; they act just as their fathers have in order to gain approval, attention, and acceptance. Dexter juggles far too many things, as he seems to do this season, and that leads to Trinity following him right into the heart of Miami Metro.
The title of season 4 episode 10 “Lost Boys” is a reference to the 1904 play by J.M. Barrie “Peter Pan, or The Boy Who Wouldn’t Grow Up.” In the play, the Lost Boys had literally been lost or misplaced by their parents. Given the fact that Arthur Mitchell has childhood hangups, this is rather a fitting title for the episode.