It's bedtime and Peppa wonders what Kylie is doing at the moment. So Daddy Pig suggests they call her to find out. Peppa is surprised to learn that it's morning where Kylie is! Daddy Pig tries to explain why using a ball representing the Earth. The next morning Kylie calls Peppa, telling her about her busy summer day, but where Peppa lives it's winter! When Peppa tells her friends about the phone calls she's had with Kylie, they want to call her too, but Peppa knows she's still asleep!