Watch Alien: Covenant - Prologue: Last Supper (2017) : Full Movies Free Streaming Online A prologue short to Alien: Covenant, it takes place aboard the Covenant, a Weyland colonization ship on its way to a remote planet to form a new human settlement. Before the crew is set to enter hypersleep, the 14 crew members (all couples) and their android, Walter, enjoy a final meal together.