“Aaron brought back another box, creating a false failsafe point to make Abe believe that there was still a working failsafe machine awaiting him, and preventing Abe from undoing Aaron's actions. Aaron then reveals that he has been using a recording to recite their conversation from an earlier time. He continues to explain how he encountered, fought, and was subdued by a previous version of himself who used the failsafe to come back and make recordings after drugging the original Aaron.
But Aaron convinced his earlier self that since he has the recordings already made that he should continue to act as Aaron.……
……The earlier Aaron who came back in the failsafe to make the recordings speaks on the phone to an unspecified recipient to whom Aaron states he owes a debt. One of the Aarons and a team of French-speaking workers begin construction on what appears to be a building-sized box.”