With Becky home sick with the Measles, George sets out to build her the best Snowman ever. But a snowstorm hits and George finds himself stuck inside his snowman's hat for shelter. Using his ingenuity, George has planted signals to help Dad find him. But George finds himself feverish and tired, and starts to see snowman coming at him from everywhere. He wakes up safe and sound surrounded by his family in Becky's room where he too now has the measles.