This article contains spoilers. Turn away now if you don’t want any.

Ridley Scott’s Alien: Covenant serves the dual role of being a prequel to Alien as well as a sequel to Prometheus, which has left us wondering just how much it connects to each of those films. Of course, it looks to be more of an Alien film than a follow-up to Prometheus, but you may have spotted the Engineers in the trailer. What role do they play in this one? We now know.

As reported by The Playlist, Fox and Ridley Scott showed off a new scene from Alien: Covenant at CinemaCon this week, and it answered a big question we’ve been pondering since we saw the latest trailer: what’s the deal with that shot (seen above) that appears to highlight a mass Engineer graveyard?! Again, we encourage you to turn away now if you don’t want spoilers.

Here’s the site’s rundown of the footage:

The sneak began with the spacecraft from the last film arriving at the Engineers’ home world. Surprised, startled or curious about this ship’s arrival, hundreds of Engineers have gathered in what looks like a Roman or Greek coliseum for the ship to dock. As the Engineers look on, the base of the ship opens and we find David walking on a deck. He looks ragged, but fully operational in a complete body. Then, as the Engineer population looks on, a mass of black bombs fall from David’s ship. The crowd panics and tries to escape the arena, but the bombs quickly explode and douse them with a black ooze that is sickeningly familiar. The Engineers are quickly transformed into hundreds (or would that be thousands?) of alien creatures as David watches from above satisfied with his…revenge?

It looks like the planet the ‘Covenant’ crew have landed on is either the Engineers’ abandoned home world hundreds of years after David’s actions or a sister planet that David has also seeded with alien spores. As the first trailer depicts, this crew of the colony ship the Covenant lands only to find themselves infected with the same alien monstrosities that besieged the crew of the Prometheus.

Needless to say, we cannot wait to see that epic scene on May 19th!

Katherine Waterston (Inherent Vice, Jobs, The Babysitters) stars with Michael Fassbender returning as Prometheus‘ android David (and Walter), with a crew that includes Demian Bichir and Danny McBride (“Eastbound and Down”), as well as Alex England (Gods of Egypt), Billy Crudup, Amy Seimetz (A Horrible Way to Die, “The Killing”), Jussie Smollett (“Empire”), Carmen Ejogo, and Callie Hernandez (Machete Kills). James Franco also has a role.

Bound for a remote planet on the far side of the galaxy, the crew of the colony ship Covenant discovers what they think is an uncharted paradise, but is actually a dark, dangerous world — whose sole inhabitant is the “synthetic” David (Michael Fassbender), survivor of the doomed Prometheus expedition

Ridley Scott had previously promised to answer questions that left Prometheus viewers confused: “Covenant is really going to show you who did it and why.”