Seeing is Believing
- Episode aired Dec 3, 2019
- Not Rated
- 3m
Merlin the Invisible Experimental Engine arrives on Sodor and makes quite an impact on one little green engine.Merlin the Invisible Experimental Engine arrives on Sodor and makes quite an impact on one little green engine.Merlin the Invisible Experimental Engine arrives on Sodor and makes quite an impact on one little green engine.