On London’s iconic river, boats are handled by a closed community of Watermen – men whose families have worked the Thames for centuries. They were once a powerful working-class tribe, proud of their royal connections and ancient customs. But, today the jobs are drying up and their traditions are under threat. With a unique perspective on big river events from the Jubilee Pageant to the Olympics, this film charts the Watermen’s summer of 2012 and a historic way of life fighting to survive.