Twelve-year old Nathaniel Ravenscroft discovers he has telekinetic skills. When neighbour Doctor Crisp dies, he bequeaths a magical wristwatch to Nathaniel. Fantastic events unfold, household objects move by themselves and a hologram of Doctor Crisp appears. Nathaniel meets a cosmic boy called Theodore Firestar. Theodore explains that the existence and progression of the Cosmos relies on the golden radiance of ten special golden pentacles. Nathaniel's dog, Otto, falls into the fourth dimension where Nathaniel meets Ruben and Octavia, space travellers from another planet. They unite as the Cosmic Aviators, each armed with a gifted watch and rocket boots for space travel. Ruben and Octavia tell Nathaniel about an evil man called Sebastian who is aided by pilot demons called Maxidroids. Sebastian is slowly destroying Ruben and Octavia's home planet. Nathaniel is shocked when he finds out that the evil Sebastian is his Uncle Sebastian from Littlehampton, U.K. His mind reminisces about a time when he overheard his uncle talk of the "Curse of the black diamonds" giving him the "Dark edge on reality". Nathaniel realizes that his uncle has been living a double life thriving on evil and contempt. Can Nathaniel stop his uncle from destroying planet Granberg and planet Earth? Can Nathaniel and the other Cosmic Aviators stop the Dark Triangle of Odium, Maximus (the Maxidroid leader) and the Maxidroids from destroying the universe?