Monisha Rajesh takes a page out of Jules Verne's classic tale, turns to a map of the Indian railways and embarks on an adventure around India in 80 trains connecting 80 cities, covering 40,000km - the circumference of the Earth. As one of the largest civilian employers in the world, featuring luxury trains, toy trains, Mumbai's infamous commuter trains, and even a hospital on wheels, Monisha discovers that the railways have more than a few stories to tell, not to mention an amazing cast of characters.