The crew of the colony ship Covenant, bound for a remote planet on the far side of the galaxy, discovers what they think is an uncharted paradise, but is actually a dark, dangerous world. When they uncover a threat beyond their imagination, they must attempt a harrowing escape Written by Twentieth Century Fox

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'.