Percy And Harold is the 35th episode of Thomas and Friends
Percy is now working at the new harbour on Thomas' Branch Line. He often has to fetch trucks, and although he works hard he still likes his new job and prefers branch line work over shunting for the mainline engines at the big station. Along the branch line is an airfield and Percy hears the planes flying overhead. The loudest though is a helicopter. Percy complains about the noise it would make.
One day Percy stops with his train at the airfield. The helicopter is there and they begin by introducing each other. The helicopter's name is Harold and it is not long before he insults Percy by calling railways slow and out of date. When they finish, Harold flies away and Percy sets off for the quarry. Percy finds Toby and expresses his feelings about Harold. Afterwards, he collects his trucks and heads back to the harbour.
On Percy's trip back to the harbour, they hear Harold's unmistakable buzzing. Percy's crew encourage the two to race each other. Percy has never been allowed to go that fast before. The trucks wail and beg Percy to stop, but it is no use. They have to slow down when they reach the wharf and Percy is sure that they have lost the race. But when the fireman climbs onto the roof of the cab, he can see Harold still looking for a place to land.
In celebration of Percy's victory, the fireman sings a song about the race, which Percy loves, especially the last line.