The mysterious war machine device known as the Gizmo is getting restless and trying to use Melanie's daughter Bess and her nephew Richard as a means of escape from its confinement. Meanwhile, problems arise with potential rogue Netwalkers tied not just to Melanie's past but to her parents and the original capture of the Gizmo. Can Melanie work with her estranged Netwalker grandmother Sarah as well as Bess to stop the Gizmo and deal with past shadows that threaten to dominate Bess's future?