Season 21
Episodes
1 Springtime for Diesel Sep 18, 2017 
2 A Most Singular Engine Sep 19, 2017 
3 Dowager Hatt's Busy Day Sep 20, 2017 
4 Stuck in Gear Sep 21, 2017 
5 Runaway Engine Sep 22, 2017 
6 P.A. Problems Sep 25, 2017 
7 Hasty Hannah Sep 26, 2017 
8 Cranky at the End of the Line Sep 27, 2017 
9 New Crane on the Dock Sep 28, 2017 
10 Unscheduled Stops Sep 29, 2017 
11 Phillip's Number Oct 2, 2017 
12 The Fastest Red Engine on Sodor Oct 3, 2017 
13 A Shed for Edward Oct 4, 2017 
14 The Big Freeze Dec 1, 2017 
15 Emily in the Middle Dec 6, 2017 
16 Terence Breaks the Ice Dec 11, 2017 
17 Daisy's Perfect Christmas Dec 18, 2017 
18 Confused Coaches Dec 22, 2017