Mainframe gets an unwanted visitor – in the form of a Codemaster from the Net named Lens. He is turning Mainframe upside down in search of another Codemaster named Talon, whom he believes is somewhere in the city. Bob finds himself in deep trouble as Lens has effectively blocked him from using Glitch, and is tearing the city apart. It seems like Bob is no match for the codemaster! Meanwhile, young Enzo seems to have figured out who Talon really is, and so it becomes the young sprites job to convince the now retired Talon to come out of hiding and save Mainframe!