Dad'x and all his friends are having holidays on Earth. Aglagla is angry against her boss. She puts Foudror to sleep and accidentally frees a host of green monsters. The latter ones will kidnap Gadget and Love-Love in order to eat them. When they go back home, Dad'X and his friends find their den sacked. So, a struggle begins between Foudror and his green army.
Laissant l'usine à Gadget et Love-Love, Dad'X, Princesse, Gouly et Cruck partent en vacances sur Terre. Aglagla, qui désespère de se voir un jour transformée en belle dame renne, est très remontée contre son patron. Elle endort Foudror et libère par mégarde une horde de monstres verts.
