(CBS News) A new trailer has arrived online for the seventh season of "Dexter."
The two-minute clip establishes one of the central questions Dexter (Michael C. Hall) will be dealing with in the upcoming episodes (SPOILERS).
In the trailer, Debra (Jennifer Carpenter) agonizes over what to do after discovering her brother's "Dark Passenger" during the sixth season's finale.
"My name has lieutenant in front of it," she tells him. "I can't just turn my back on this."
This leaves Dexter contemplating, in one of his trademark voiceovers: "The only thing worse than not knowing what she'll do, is not knowing what I'll do."
"Dexter" returns to Showtime on Sunday, Sept. 30, at 9 p.m. ET.
Tell us: What do you think of this new "Dexter" trailer?