The DVD distribution team published the video on the social networking video site in the lead up to the movie's home video release.
The teaser sees Owen taking hoppers down to the rails below before Paxton strikes a conversation with Skarloey.
Shortly after, Blondin' Bridge begins its decapitation, leading to a worker and Merrick signalling Rheneas to halt before reaching the section.
The two minuter sees Ben Small, Steven Kynman, Keith Wickham and Matt Wilkinson voice Owen and Rheneas, Paxton and Peter Sam, Skarloey and Sir Handel, and Rusty respectively. Michael Brandon narrates the scene.
The unknown worker has been speculated by fans to be Season Five character, Old Bailey who was briefly seen in the feature-length special's trailer.
Blue Mountain Mystery is now showing in Australia at Hoyts cinemas, every weekend at 10:30am till September 16th. The DVD is released on September 19th.
Kidtoon Films will host the movie in various cities in the United States of America starting from August 2012. The DVD and Blu-Ray bundle hit stores on September 18th.
The UK premieres the film in Vue cinemas for two days only on September 1st and 2nd 2012. A celebrity blue carpet launch at Vue Leicester Square is to be simulated on the first date. The DVD comes out on September 3rd.