Why does glamorous Gollywood go ga-ga when a nobody like Mister Z skips town? It's a fiendish Hacker scheme, of course. Because of a poison pen campaign devised by Hacker, Mister Z feels worthless and unwanted. He decides to leave Gollywood, taking his zeroes with him. The sudden disappearance of the number zero causes confusion and chaos, exactly as Hacker planned. As Hacker becomes the biggest star in Gollywood, the kids and Digit must show Mister Z he does indeed have a value by demonstrating the importance of the number zero.