It's revealed late in the movie that David (Michael Fassbender) used alien biological weapons to destroy biological life on the home planet of the Engineers — the alien race responsible for human life on Earth.

Here, Heat Vision debuts an exclusive extended scene from the Alien: Covenant Blu-ray that shows David leading the group of human survivors back to his stronghold. Along the way, they see the corpses of Engineers he killed a decade earlier. It's one of 90 minutes of bonus features included on the Ridley Scott film's home entertainment release.

Here's the breakdown of bonus or extended scenes, some of which were released ahead of the film:

— Prologue (Extended)

— Walter in Greenhouse

— Oram and Daniels (Extended)

— Walter Visits Daniels

— Daniels Bedroom Flashback

— Jacob's Funeral (Extended)

— Ledwards Fall

— Crossing the Plaza (Extended)

— Daniels Thanks Walter

— Rosenthal Prayer

— Walter Reports Back

— Stairs to Eggroom (Extended)

In May, screenwriter Dante Harper spoke with Heat Vision about some of the scenes that didn't make it into the movie, as well as his take on those alien ruins.

"You go to this place that has elements of this lost civilization that may have been evil, or maybe not. You're not sure," said Harper. "And it's been destroyed and the whole planet is this haunted house. And then you meet this person who is this sort of Caliban or a Fall of the House of Usher type of figure who, everything you see, you aren't going to have it explained, but you have a sense that many terrible things happened in this past in this place. It deals with history, which you don't normally see in science fiction."

Alien: Covenant is available on digital HD Tuesday. It will be available Aug. 15 on Blu-ray, DVD and 4K Ultra HD DVD.