British filmmaker Graham Hughes is taking his love of traveling to the limit, embarking on a record-breaking epic challenge to set foot in every country on Earth in a single year – without flying. Nearly 200 countries and roughly 90,000 kilometers in 365 days, Graham’s World is a logistical nightmare. The opening episode of this eight-part series tracks Graham’s final days of prep in Liverpool, tearful farewells and journey to the starting line in Buenos Aires. On New Years Day Graham launches into a new life of perpetual motion, punctuated by random acts of kindness, lost luggage and roadside tragedies, as he sets out to travel to every country in South America as quickly as he can.