After letting the police captain escape in Episode 9, we see Dexter (Patrick Gibson) follow Spencer to a massive ship, where he’s holding his son. Realizing that Dexter has caught up with him, Spencer floods the chamber where Nicky is chained, forcing the serial killer into a choice — save a child or let his urge to kill take priority.

Patrick Gibson ( The OA) beautifully tackled the role of a younger Dexter as though he were born for it, while Hall returned to provide the murderer’s inner voice. According to Original Sin showrunner Clyde Phillips (he also oversaw the first four seasons of the OG series), that running monologue is what makes the franchise so enduring.

Young Dexter Morgan will experience a “defining moment” during the season finale of Dexter: Original Sin, teases Patrick Gibson, adding that “something will shape him into the Dexter that fans know.” The Irish actor plays the titular character in the prequel series.