Carmen, Tibby, Lena and Bridget have been best friends all their lives. They live in the same small American town and usually spend every moment of their long summer holidays together. The year they turn 16 is the first time they have separate plans for the summer but the girls are determined to keep in touch. Tibby buys a pair of jeans in a second-hand shop and the girls discover that the trousers magically fit each of them perfectly, despite their different figures and heights. They hit upo