Stargazer has a vision of unstoppable danger. A power struggle ensues after Killara's band of misfits attempt to steal the spider scroll. Tipi's dreams have her fearing for the fate of her friend.

When Darkan, Stinger, and the Kulipari go to war, a greater enemy threatens them all. The King of the Outback must rise to command the serpent and save everyone.

The new Scorpion Lord leads his army and uncovers an impossible ally. As the citizens of Nova Australis celebrate the return of Koa, the mercenary Killara sets out on a journey to collect the poison scrolls - with the help of his young niece and nephews.