The windmill is broken, which means there's no power at Sunny Field Farms. After figuring out that the problem is a broken blade, the Mechas try different materials to fix the windmill and restore power back to Zee and MacBarm. / Izzy and Timmy are making a bird caller for Grandma, but have trouble connecting pieces of their machine. The Mechas search for items that will move the machine along and help the kids call birds for grandma.