The official trailer for "Dexter: Original Sin" shows the origin story of one of TV's deadliest characters. The trailer shows a young Dexter (Patrick Gibson) discovering the code that will guide his decades of killing, all with the help of his father Harry (Christian Slater).

In anticipation of the upcoming prequel series, Paramount Global finally debuted a trailer for the upcoming series, which follows Dexter Morgan’s path to becoming the avenging serial killer that audiences knew and loved in the original Showtime series.