Martin, a teenager with a keen passion for outlandish culinary experiments, along with his friend Charlène, a historian by blood, find themselves transported back to the Middle Ages after messing with an old toaster. Mistaken for wizards by the people of the time, the two friends must figure out what's going on while confronting familiar faces...

While Mixel tries the best he can to help along with Martin's parents, Charlène and Martin have escaped the flames and appeared somewhen else, where twists and turns won't end. Why is everything happening? To find that out... they must go Back to the Toaster!

Émile, a cinema student at Janot High School, must make a short-film for his film studies diploma. To carry out his project, he needs to form a group with some of his classmates, with whom he will be confronted, given the rather strange nature of his project...