Gordon and The Gremlin is the 110th episode of Thomas and Friends.
Gordon has problems with his fire, and the firelighter suggests it is due to gremlins. Thomas and Percy get excited, but James thinks it is nonsense. The engines argue about the issue until the Fat Controller arrives and informs the engines that a VIP is coming, who has heard a lot about the Fat Controller's engines. He wants them all to be really useful, but Percy worries about the gremlins in Gordon's fire. The Fat Controller warns Gordon to be on his best behaviour and lets him take the VIP.
The goods yard's turntable malfunctions with the special coach on it, making Gordon late. He makes up for lost time and manages to get to Kirk Ronan on time. Thomas arrives with the special passenger and Gordon takes her to Wellsworth. On the way, Gordon goes at high speed, much to the passenger's disliking. At Wellsworth, the passenger's Dalmatian runs away after Gordon's loud whistle and, after confronting a bull, runs into Thomas' cab and stays there during the trip to the docks.
At Brendam, Thomas inquires about the visitor, and the Fat Controller reveals she is his mother, who then aptly renames her dog "Gremlin" after the day's events.