It was past midnight when Nicola Berry Earthling Ambassador and leader of the Space Brigade received an urgent phone call. Shimlara from the planet Globagaskar was ringing with terrible news: her mother, father and little brother Squid had been kidnapped! They were being held captive on the Planet of Whimsy the most beautiful planet in the universe by the scaly inhabitants of Volcanomania. Now the members of the Space Brigade have to daringly rescue...

Finn's been through so much, he'll now be allowed do what he wants with the rest of his life, right? Wrong. Whether he likes it or not, he's going to be made a proper Legend Hunter. But then suddenly people start disappearing, Legends are appearing where they shouldn't, Broonie's complaining, and an attack so big is coming that Finn has the weight of the world on his shoulders. The weight of two worlds, actually...