Bound for a remote planet on the far side of the galaxy, the crew of the colony ship ‘Covenant’ discovers what is thought to be an uncharted paradise, but is actually a dark, dangerous world – which has its sole inhabitant the ‘synthetic’, David, survivor of the doomed Prometheus expedition.

Aboard a hijacked Engineer vessel, Dr. Shaw repairs David as they make their way to the home-world of the Engineers, whom Shaw believes are humanity’s creators. ‘The Crossing’ is an official prologue short to ‘Alien: Covenant’, revealing what happened to crew members Dr. Elizabeth Shaw and the synthetic David after the events of ‘Prometheus’.