When Kwasi and his family move abruptly from one side of London to the other, he sets out to explore his new home. Escaping the watchful eyes of Ma and Da and his irrepressible Aunties, he discovers the local high street and a hidden river. Back at the yellow house, he spends hours drawing, distracting himself from thoughts of the new school that awaits. As the years pass, the high street remains a source of fascination for Kwasi. But behind the ever-changing shopfronts, it's a different story. Business is slow and times are getting tougher. Widower Rupert has been trying to hold on to the dreams he and his wife poured into their eclectic charity shop, The Chest of Small Wonders, but now he is close to giving up. One October night, Kwasi finds himself in trouble and takes refuge in the Chest, and an unexpected friendship begins. As he and Rupert unite to save the shop, they each find a sense of belonging.