The Xenomorph's out of the bag.

Alien: Covenant's marketing has so far played it pretty coy with the impending terrors to be unleashed on audiences, relying on the traditional facehugger attack and a few brief glimpses of its full-grown iteration.

Yet, this latest trailer puts the full goods on display, ending in a full-blown Xenomorph attack on one of the Covenant crew's ships - with the creature finding a use for its sledgehammer-shaped head by smashing it repeatedly into its glass windows.

It's a little strange to see a full CGI Xenomorph rampaging about, but the trailers have so far ramped up such a sense of terror and chaos that the film very much promises to walk in the footsteps of its 1979 original.

Even star Michael Fassbender has promised the film will be "super scary"; here returning alongside Prometheus cast members Noomi Rapace and Guy Pearce, plus some new faces: Fantastic Beasts' Katherine Waterston, Demian Bichir, Billy Crudup, and Danny McBride.

The film sees the crew of the colony ship Covenant discover what they believe to be an uncharted paradise while journeying to a remote planet on the far side of the galaxy; but they soon come to understand this new world is actually a dark, threatening place, inhabited only by the 'synthetic' David (Fassbender), a survivor of the doomed Prometheus expedition.

Alien Covenant Prologue