Michelle Clark has loved animals all her life, filling her home with a menagerie of stray cats and abandoned dogs. But when her outreach work with London's homeless community leads to a chance meeting with a desperate man, and a quest to find a missing Staffie named Poppy, she has no idea that her life will be transformed forever. Poppy is unlike any other dog that Michelle has ever met, with her unwavering loyalty, gentle nature and wise, kind eyes.

Soon, Poppy finds her way not just into Michelle's heart, but into her home too. Inspired Poppy's extraordinary love and devotion, Michelle finds herself at the start of a journey to bring hope and help to the hundreds of other precious dogs who call the city streets their home.