Pursued by Hacker, Digit lands on cybersite Eureeka, where his mission is to find Professor Archimedes — the maker of the encryptor chip, a unique computer chip that can fix Motherboard. But Archimedes is nowhere to be found — only a pile of 2-dimensional rods where his chip factory should be. The kids arrive to help, and discover that by linking the 2-dimensional rods together into certain geometrical patterns they create a surprising 3-dimensional shape that leads directly to unraveling the mystery of Archimedes' strange disappearance. Math topic: 2-D and 3-D geometry and how two-dimensional shapes and join together to create three-dimensional object.

Originally released by PBS, 2002. Streaming video file encoded with permission for digital streaming by Infobase on January 26, 2022.