Stranded in space after Moya was swallowed by a wormhole, Crichton is picked up by an old, dying Leviathan called Elack. With only a decrepit old Pilot and a reprogrammed DRD for company, he works interminably on his wormhole equations until a small scout craft carrying an exotic female alien named Sikozu crashed his part.

Shortly afterwards, Elack is stormed by another ship, bearing Grudek mercenaries intent on harvesting the Leviathan's rare neural tissue

In order to flush out Crichton and Sikozu, the Grudeks release a Brindz Hound. After barely escaping with his life once, Crichton decides to fight back, setting up an ambush for the mercenaries. Whilst lying in wait, his position is given away by the unexpected arrival of Chiana and Rygel.

Crichton's reunion with his friends is quickly soured as Sikozu's loyalties become more suspect by the moment and the Brindz Hound continues to scour the ship. Finally, Crichton manages to flush the animal out into space, just as Elack powers down.

Crichton realises that the Grudeks have found the prized neural toubray flesh, and the death of the Leviathan will soon follow if he doesn't act quickly. As the Grudeks work in the neural cluster, Crichton and the others gear up for the final battle - a firefight where one wrong move will trigger the destruction of Elack.