Cartman locks horns with his mom and has a battle of wills, while an epic conflict threatens South Park's existence.

Colorado is experiencing a drought, making water a highly valuable commodity. Due to their locations, certain farms have an abundance of water. One such farms is Tegridy Weed, owned by Randy Marsh. After his neighbour sells a portion of his water rights Randy does the same. Soon other farmers are selling their water, starting a streaming war. Stan, Kyle and the boys are profiting from this as they are making small boats for the warring streamers.—grantss