Based on the Season Five television series finale episode, Rusty and the Boulder, Sir Handel takes on the role of the innocent engine running for his life.
Boulder albeit faceless meanwhile, chases the blue Narrow Gauge Engine after dropping off his mountain perch.
With Sir Handel's task to reach the crossing gates in time, this attributes to the set's tagline; Can Sir Handel dodge the runaway boulder?!
Runaway Boulder from TrackMaster is now available in stores worldwide.
Thanks to SteamTeam for the alert.