Cyberchase is an educational television series for children aged 8 to 11 that teaches children discrete mathematics. The show stars three Earth children Matt, Jackie and Inez and Digit, a "cyboid" (a bird-like cyborg). The three kids and Digit use their math and problem solving skills to stop the evil deeds of the Hacker and his two cyborg henchmen, Buzz and Delete. The series takes place in Cyberspace, with planet-like bodies called "Cybersites." Each cybersite is inhabited by "Cyborgs" the virtual inhabitants of Cyberspace. Some are based on real-world places, such as ancient Egypt and the American Old West, or fantasy worlds, such as mythological Greece.