Lister and Lester are identical twins who do identical things. But their constant striving to outdo each other means their little brother, Liam, is always left out. When Lester s Lemonade Universe and Lister s Lemonade Multiverse open for business, there s no role for Liam. He does odd jobs around the neighborhood while Lister and Lester s competition spirals into overdrive and their lemonade stands get increasingly, outrageously out of hand.