Due South was a popular Canadian TV Show. The Season 2 Episode 14 features the RCMP musical ride on board a train with terrorist attack. Lots of fun with Leslie Nielsen and Gordon Pinsent in this episode.
These outtakes are of the scene 42:35 into the episode. It is of the RCMP actors and their horses getting on and off the train. The original episode aired 12 April 1996 - Season 2 | Episode 14. You can watch the whole episode at: https://www.dailymotion.com/video/x5vftr8