Showtime has just debuted three brand new videos from the upcoming fifth season of Dexter, which will debut on Sunday, September 26 at 9 PM ET on Showtime. Click below to watch a new Season 5 teaser trailer, an extended promo video and a clip featuring Michael C. Hall and James Remar discussing Dexter's "moral compass."

Dexter stars Michael C. Hall, Jennifer Carpenter, Desmond Harrington, C.S. Lee, Lauren Vélez, David Zayas and James Remar. Dexter's fifth season will premiere on Sunday, September 26 at 9 PM ET on Showtime.