Pete the Pond has spent the last 20 years trying to return Britain's aquatic wildlife to its former glory. Despite his best efforts, the abundance of creatures he remembers from his childhood are quickly disappearing. As he sets out to build yet another wildlife pond in a British garden, a letter from his local council threatens to destroy his life's work. Can Pete reach his goal of reconnecting the next generation with the natural world? Or is Britain's biodiversity crisis a lost cause?