Sezon 12
Bölümler
1 Thomas and the Billboard 1 Eyl 2008 
2 Steady Eddie 2 Eyl 2008 
3 Rosie's Funfair Special 3 Eyl 2008 
4 Mountain Marvel 4 Eyl 2008 
5 Henry Gets It Wrong 5 Eyl 2008 
6 Heave Ho Thomas! 8 Eyl 2008 
7 Toby's Special Surprise 9 Eyl 2008 
8 Excellent Emily 10 Eyl 2008 
9 The Party Surprise 11 Eyl 2008 
10 Saved You! 12 Eyl 2008 
11 Duncan and the Hot Air Balloon 15 Eyl 2008 
12 James Works It Out 16 Eyl 2008 
13 Tram Trouble 17 Eyl 2008 
14 Don't Go Back 18 Eyl 2008 
15 Gordon Takes a Shortcut 19 Eyl 2008 
16 The Man in the Hills 22 Eyl 2008 
17 Thomas Puts the Brakes On 23 Eyl 2008 
18 Percy and the Bandstand 24 Eyl 2008 
19 Push Me, Pull You 25 Eyl 2008 
20 Best Friends 26 Eyl 2008