The war with Necros continues... Yugo and his friends must redouble their efforts to stop Toross Mordal and his army. Peace will never return to the World of Twelve until the invasion of the Wakfu eaters has been thwarted.
Yugo gathers all the members of the Brotherhood of the Tofu. After reuniting with Ruel and then the Sadlygrove family, Yugo and his friends return to the Sadida Kingdom to prepare for the final assault against the Necros.
Nora finds herself in a difficult spot as the fight between Qilby and Lokus continues in the Eliatrope Temple. Meanwhile, Yugo, still imprisoned by the Necros, is locked in a fierce battle with himself.
Convinced that Qilby is involved in the appearance of the Necro portals, Yugo tries to confront him. He and his friends then travel to the Necroworld where they meet a powerful being with a thirst for Wakfu.
Evangelyne takes the time to listen to Madagaskane, despite a bit of hesitation. Meanwhile, Yugo starts negotiations with the leaders of the World of Twelve to get their help against the Necros.
Amalia and Yugo, confronted with a new wave of Necros in the Sadida Kingdom, try to repel the assault. Meanwhile, on Albuera Island, another attack is underway, led by an enormous Necro Dragon. The monsters are getting dangerously close to shore.
Back in the Sadida Kingdom, Amalia learns some tragic news. Meanwhile, Yugo is getting to know his sister a little better. Far across the World of Twelve, an old man continues his journey. And at the Stroud home, Ruel wakes up to a very unpleasant surprise.