Moya approaches a wormhole, gets pulled in, only to collide with another ship and become fused with it. Only one ship can ultimately survive, and the aliens aboard the other ship will stop at nothing to be sure that it will be theirs.

While visiting a Peacekeeper memorial, Stark accidentally sends himself, Crichton, D'Argo, Aeryn and Jool back in time where they alter the timeline and then are forced to interfere further to restore it.