Best friends Lena, Tibby, Bridget and Carmen, all born within weeks of one another, are preparing to spend their first summer apart. When Carmen buys a pair of second-hand jeans, the girls discover that despite their different physiques, the jeans look great on all of them. They promise to rotate the magical jeans, dubbed ‘the travelling pants’, amongst them and at the summer’s end record their favourite adventure while wearing the pants. The jeans travel the world with the girls, visiting grandparents in Greece, attending soccer camp in Mexico, spending summer with Dad in South Carolina and working at home. They tie together the four distinct characters, each individual and courageous young woman, as they find their own strength in the face of new love, unexpected friendships, a father’s remarriage and a reckless relationship. The result is a true sisterhood of support and acceptance.