Grant and Sara found each other and went looking for their children, Pia and Nate, in all dimensions. and their alternative versions did the same. Only, if they did not all give up this quest, the multiverse could collapse. While they had reached the original dimension, the heart of Onion, and abandoned any hope of finding them, their children surfaced again by teleporting them in their ship. Contains the episodes US :- BLACK SCIENCE #39-43