Host Teddy Wilson whisks viewers around the world to witness the inner workings of six exceptional trains and their scenic locomotive routes. This season, Teddy rolls along Norway's scenic Bergen Line, and uncovers how some of the fastest trains in the world are built at an Italian train company owned by the chairman of Ferrari. Then, it's off to the Indian Pacific train for a bucket-list journey across southern Australia, and on to the colourful trains of the Thailand State Railway to traverse beautiful but deadly landscapes. This season's adventures are capped off by a trip through historic routes and impressive scenery aboard South Africa's most luxurious train, the Pride of Africa, and a wintery journey aboard Switzerland's Bernina Express, one of the most beautiful train trips on earth. Produced by Discovery's Exploration Production Inc. (EPI), MIGHTY TRAINS is set to air in more than 100 countries around the world, spanning the U.K., Germany, Australia, France, Scandinavia, Eastern Europe, and throughout Asia, with Season 4 now in production.