Cathy, Judy, Bella and Ellen are four good friends in Maryland, the USA. They go to the same school and always stay together. However, they are going to spend this summer holiday in different places. Ellen is going to visit her grandparents in Greece. Judy plans to stay at home and work in an ice-cream shop. Bella will (将) go to a football club in Mexico, and Cathy has  to visit her uncle in South California. Before leaving (离开), the four girls go shopping  together, and  they find a nice pair of jeans in a shop. To their surprise, the jeans ft all of them, so they buy the jeans and call them the Travelling Jeans. They want to share the jeans and their different stories in the coming summer. They have a good idea. Everyone can wear the jeans for some days, and then send them to the next one. It will make them feel like they are always together. What a lovely idea it is!