Gordon and the Famous Visitor is the fourth episode of the third series and the fifty sixth episode overall.
It is an important day at the yards as a special visitor had arrived and was now the centre of attention, with many people taking photographs and making notes. Duck explains to Thomas and Percy that he is a celebrity, a very famous engine and they will have the chance to talk to him later, although Thomas believes that the Visitor is too famous to want to talk to them. Thomas, Duck, Percy and the other engines are very pleased about the Visitor, but Gordon is jealous as he thinks it is a lot of fuss about nothing. The other engines are happy to find that, contrary to Thomas's expectations, the Visitor is friendly and he enjoys talking to Sodor's engines well into the night.
The next morning, the visitor heads back to his railway, and Thomas tells Gordon that the engine is famous since he went 100 mph before Gordon was even thought of. Gordon is unamused and tells Thomas that the visitor has no dome and that domeless engines are not respectable or trustworthy as far as he is concerned, and that 100 mph would be easy for him.
Later that day, Duck takes some trucks to Wellsworth and tells Edward what Gordon had said about the visitor. Edward tells Duck not to take any notice, since Gordon thinks that no engine should be famous but him. Moments later, Gordon thunders past the two engines on the main line as his wheels pound the rails. Duck watches and tells Edward that Gordon will knock himself to bits.
Gordon's driver tells him that he is not running a race, but Gordon takes no notice. Gordon then notices that the top of his boiler feels funny as something feels loose and decides to slow down, but it is too late. On the viaduct, he meets a teasing wind that makes him think it will push him off. But the wind has other ideas as it curls around Gordon's boiler and blows his dome off and into the valley below. Gordon is most uncomfortable as he feels silly without his dome, and to make matters worse for him, he is made into a laughing stock at Knapford Station by some trucks.
On the journey home, Gordon asks his driver to find his dome, but he tells Gordon that they will never find it now and Gordon will have to go to the works for a new one. Gordon is most upset and hopes that the sheds are empty tonight, but all the engines are there waiting. As Gordon turns around on the turntable, he hears a voice saying, "Never trust domeless engines. They aren't respectable."