The residents of Sensible Flats have no more water in their resevoir and are trying to discover why the water levels have declined. The CyberSquad asks for historical records of the water level, and Rudy provides records of the last 25 days to the group. Inez, Matt, and Jackie think about how to use the dates to tell a story and decide that graphing the water levels day-by-day would work. The CyberSquad creates a line graph on the side of the tank and explains how to read the graph to the residents.