Panic erupts in Pretty Big City when the big clock breaks and no one is able to tell what time it is. The Mechas need to replace a broken gear in the clock in order to keep the hands moving and set the city to the right time./Zee is showing off his inventions at his rocket powered Ferris wheel at his invention show. When it loses control and falls down the Mechas need to find a way to lift it on its side so they can roll it back for Zee's presentation.