The three apprentices have arrived at the village they were supposed to rescue, only to find it abandoned! Gripped by madness, the entire town has left for the Silver, a bizarre outpost in the desert where they plan to rebuild the Surrogate's robot army, under the sway of a culty Priestess. Now Trinh, Ursa and Charris are on a stealth mission to track a cultist, deep into Surrogate territory and straight towards the danger! How can they thwart the Priestess's dangerous plan without hurting any brainwashed civilians?