Showtime has released the first full-length trailer for the eighth and final season of “Dexter,” premiering June 30. The new season picks up six months after Debra Morgan shot and killed Maria LaGuerta to protect her brother Dexter from being exposed as a serial killer.

The trailer provides a glimpse at Debra’s (Jennifer Carpenter) emotional breakdown and regret and introduces a profiler whose insight into serial killers and Dexter’s (Michael C. Hall) past could finally end his Dark Passenger’s journey.

Peep it: