Season
- Season 0 2008-09-01
- Season 1 1984-10-09
- Season 2 1986-09-24
- Season 3 1992-01-25
- Season 4 1995-10-16
- Season 5 1998-09-14
- Season 6 2002-09-16
- Season 7 2003-10-06
- Season 8 2004-08-01
- Season 9 2005-09-05
- Season 10 2006-10-02
- Season 11 2007-09-03
- Season 12 2008-09-01
- Season 13 2010-01-25
- Season 14 2010-10-11
- Season 15 2011-03-01
- Season 16 2012-02-20
- Season 17 2013-06-03
- Season 18 2014-08-25
- Season 19 2015-09-21
- Season 20 2016-09-05
- Season 21 2017-09-18
- Season 22 2018-09-03
- Season 23 2019-09-02
- Season 24 2020-05-01
Season 24 Episode
- Season 21 Springtime for Diesel
- Season 21 A Most Singular Engine
- Season 21 Dowager Hatt's Busy Day
- Season 21 Stuck in Gear
- Season 21 Runaway Engine
- Season 21 P.A. Problems
- Season 21 Hasty Hannah
- Season 21 Cranky at the End of the Line
- Season 21 New Crane on the Dock
- Season 21 Unscheduled Stops
- Season 21 Phillip's Number
- Season 21 The Fastest Red Engine on Sodor
- Season 21 A Shed for Edward
- Season 21 The Big Freeze
- Season 21 Emily in the Middle
- Season 21 Terence Breaks the Ice
- Season 21 Daisy's Perfect Christmas
- Season 21 Confused Coaches
Thomas & Friends - Season 21 Episode 5 Runaway Engine
6.80 22 minutes Millie is given extra work around the estate and gets agitated when Stephen and Glynn forget to clear up the garden waste. When Stephen also manages to hurt her feelings, and can't find her the next day to apologise, he thinks that she must have run away.
