Geraint Thomas is one of Britain's most loved sports stars. He's won Olympic gold medals, finished first, second and third at the Tour de France, and stayed at the top of his sport for almost two decades as other riders and eras have come and gone.

This is the story of his epic journey - from the streets of suburban Cardiff to the Champs-Elysees in Paris, from the mountains of the Alps to the cobbles of northern Europe. The races, the rivals, the triumphs and the magical moments none of us will ever forget.