Yesterday, Showtime debuted the fourth trailer for Season 7 of Dexter, featuring Michael C. Hall's title character discussing his "dark passenger." Today, the network has unleashed another trailer, that may seem like the very same video, until a new twist at the end with Dexter's sister, Deb (Jennifer Carpenter).

How will she handle this revelation? Visit TVWeb to check out the video, and then tune in to the Season 7 premiere, Episode 7.01: Are You...?, on Sunday, September 30 at 9 PM ET to find out what happens next: CLICK HERE

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