Four lifelong friends will be spending their summer separated for the first time. On a shopping trip, the young women find a pair of thrift-shop jeans that fits each of them perfectly and decide to use the pants as a way of keeping in touch over the months ahead. Each one of the friends will wear the jeans for a week to see what luck they bring to her before sending them on to the next. Though miles apart, the four friends still experience life, love and loss together in a summer that they will never forget.