Trouble is brewing beneath Serene Greens. Hapo the earthworm needs help underground, but how can the CyberSquad possibly help their miniscule friend? With one zap of Digit’s shrinkray, the team shrinks to the size of tiny insects and portals underground. The CyberSquad comes face-to-face with all sorts of critters that make up this thriving ecosystem; however, they soon realize Bug Bayou's ecosystem is not healthy. The roots are mushy, the ground is clumpy and dry, and food is scarce. Something is damaging Hapo’s soil. But what? The CyberSquad digs in to get to the root of the problem. Part of the "Cyberchase" series.