Charlie Holloway: These are images of archaeological digs all over the Earth: ancient civilizations that shared no contact. And yet, the same pictogram on every last one of them.
Fifield: A star map?
Elizabeth Shaw: No, an invitation.
Fifield: From whom?

Meredith Vickers: Take us home!
Elizabeth Shaw: If we don't stop it, there won't be any home to go back to!

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