

Animation•
Kids
The Best Episodes of Thomas & Friends Season 21
Every episode of Thomas & Friends Season 21 ranked from best to worst. Discover the Best Episodes of Thomas & Friends Season 21!

Animation•
Kids
The Best Episodes of Thomas & Friends Season 21
Every episode of Thomas & Friends Season 21 ranked from best to worst. Discover the Best Episodes of Thomas & Friends Season 21!
Thomas & Friends is a British children's television series, which had its first broadcast on the ITV network on 4 September 1984. It is based...
Seasons26
Season 21 Ratings Summary
"Springtime for Diesel" is the best rated episode of "Thomas & Friends" season 21. It scored 8.7/10 based on 64 votes. Directed by Unknown and written by Unknown, it aired on 9/18/2017. This episode is rated 0.8 points higher than the second-best, "A Most Singular Engine".