Roger Griffiths set out in 1979 to capture for prosperity as many as possible of the older classes of locomotives then in service on Indian Railways. Displaying the state-owned, private and industrial locomotives, this program shows the diversity of historical locomotives still in use of some 38 classes, from 37 different builders. From Puna to Patna, Dhaulpur to Darjeeling and Baroda to Bangalore, we join Roger on this colorful sub-continental steam journey, from plains to mountains with steam under those wonderful British semaphore signals.