Kids like superheroes, so what could be better for tykes than becoming superheroes themselves? That's what happens at night for young friends Connor, Amaya and Greg. When they put on their pajamas and activate their animal amulets, they turn into their alter egos -- Catboy, Owlette and Gekko -- before embarking on adventures that are filled with action. Along the way, they solve mysteries and learn valuable lessons. The animated series is based on the "Les Pyjamasques" book series by French author Romuald Racioppo.