Spring The arrival of spring sees the crowds return to Snowdon, with railwayman Steff re-opening the summit cafe and singer Shirley Bassey unveiling a train carriage named in her honour. The return of paying customers is good news for Alwena and her cafe 1,800ft up the mountain, but the busy paths to the summit spell trouble for Rob and his mountain rescue team

A look at the busy summer season, when it is all-hands-on-deck as the epic Snowdon Race brings runners from all over the world to the mountain. Farmers Jo and Fiona deal with the frustrations of the season's busy months as unruly pets attack their livestock, while big crowds bring problems for Rob and the mountain rescue team.

Snowdon gradually falls silent in the winter months and the residents around the highest peak in England and Wales have it almost to themselves. Railwayman Steff shuts down the summit centre at Hafod Eryri as the season ends, while Alwena also calls temporary time on her Halfwacafe. Plus, wild swimmer Viv goes for a bracing winter plunge and Jo the mountain farmer finally sets foot on the summit of Snowdon for the first time.