When Martin wakes up, his throat is on fire! This morning he is a small dragon with glasses!

This morning Martin is an astronaut! His spacesuit is a lot of fun for his buddies to play with (though Romeo of course pulls a few mean tricks). Until Martin is summoned urgently to the Space Center: an asteroid is about to crash into the Earth!

When Martin wakes up, his throat is on fire! No wonder: this morning he is a small dragon with glasses! So much for being discreet – he was planning to invite his friends Gromo and Roxanne to the movies. In the movie theatre, Martin’s disconcerting appearance cause a bit of a panic among the audience. He also provokes the anger of one of the actors, who happens to be a real dragon. He thinks Martin is making fun of him and angrily confronts him.

On a cold winter day, Martin wakes up as a werewolf! At school, he terrifies Mrs Buzzbee, causing an incident that requires him to go and clean up in the restrooms. There, he witnesses the kidnapping of the Principal, Mr Goldfish, by an individual resembling him: a real werewolf! Martin and his friends follow the kidnapper and his captive through a mysterious passage leading them to the heart of a sinister forest.

Waking up, Martin discovers he is a warden at the city animal park. He is about to go out when on TV, a news flash announces that the park’s fence has collapsed, and "dangerous" animals have escaped. The town is in an uproar, especially as Olive, the green penguin of New Zombie (last of this species in the world) is missing. Police Chief Lavisse suspects Martin of being at the origin of this "criminal break-in".

Martin wakes up dressed as a Viking. Today Mrs Buzzbee is taking them to the museum. There, Romeo jostles Roxanne and her ice cream winds up on the nose of a statue of the Norse god Loki. The god demands reparation for this offense and puts a pair of buffalo horns on Gromo’s head, until they bring him the eggs of the terrible Midgard snake. The kids manage to snatch the eggs, but then, full of remorse, they bring them back to the snake.