The Pacemakers follows the fun, surprising story of a group of men, all over the age of 90, as they pursue their dream of becoming world champion athletes. Director Selah Hennessy spent a year filming with an international sub-culture of athletes as they prepare for the Olympics of OAP sport: the World Masters Championship. Charles Eugster, 97, is considered Britain's fittest OAP and he has become a star athlete in the world of senior athletics. A former dentist, he only started running at 95 - but in the space of just two short years, he has managed to ratchet up multiple world championship titles and two world records. Now, spurred by a burning desire to break as many world records as he can, Charles has taken up a new challenge: the long jump. With the intense and unrelenting guidance of his Austrian coach Sylvia, he is training to break the world record. Meanwhile, 92-year-old Peruvian Hugo Delgado, 92-year-old Jim Sinclair from Australia, Zhiyong Wang from China and Dixon Hemphill from the United States aspire for gold in the 100m. These are a highly competitive group of athletes, all hell bent on being champions. They are also very determined old men battling major obstacles - from early onset dementia to terminal lung disease - in order to fulfil their ambitions. In this fun, warm-hearted and intimate portrait, we see the ups and downs as they prepare for two major world championships in Australia and South Korea, where they have the chance to prove themselves on the world stage - and show that we are never too old to dream big.