The 'Eroes of Thames tells the story of a famous swimmer, Peter Jimpson and his son, also named Peter, trying to maintain their fame in the big city of London. The father designed a skit in which his son would fake drowning in the Thames, and a random passerby (actually Peter himself) would dramatically rescue the boy. His plan is thwarted when a pair of grifters catch onto Peter's scheme and prevent him from following through with it as planned.