Milo and Jannis become accidental witnesses when the old Geronimo is attacked at his junkyard. Before he falls into a coma, he asks the boys to take care of iX and the others. But who the hell is iX? And who are the others? With the help of a butterfly and a large dose of courage, the boys uncover the incredible secret of the old Geronimo and his strange metal beings, whose lifeblood is storytelling. When they learn that the junkyard is set to be destroyed, Milo and Jannis devise a daring plan to save the robots - excitement guaranteed!.