Special guest stars: Ray Stevenson and Yvonne Strahovski
Sneak Peek #1: Debra learns the truth about Dexter.
Sneak Peek #2: Debra debriefs the team.
When a local convict claims he has new information regarding a 15-year-old crime spree, Miami Metro sets out to unearth new evidence on the case. Debra attempts to cure Dexter of his killer tendencies. Meanwhile, the Mike Anderson case leads to the Ukrainian mob and a vengeful Louis won't stop meddling with Dexter's life.