Original Air Date: Dec 13, 2009
In the Season Four finale, Dexter and Arthur find themselves on a collision course, as Debra unearths a shocking long-hidden truth, Rita admits her marriage to Dexter is troubled, and Batista and LaGuerta face the consequences of an ethics breach.
"As the Trinity plotline resolves itself in the season finale, Debra confronts Dexter with his past, and Dexter considers dumping his Dark Passenger by the side of the road."READ MORE AT Vulture
"The key is in the fact that Dexter always, always lives to kill another day."READ MORE AT The A.V. Club
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