Halo: Nightfall is a live-action, five-part digital series that leads up to Halo 5: Guardians. This trailer introduces the backstory of Halo 5's new playable character Jameson Locke as he and his team are caught up in a horrific terrorist attack.

Halo: Nightfall will debut November 11 in Halo: The Master Chief Collection and on XBox One's Halo Channel, with a new episode released each week. It's executive-produced by Ridley Scott and Scott Free TV President David Zucker and directed by Sergio Mimica-Gezzan.