Tomy Henry to the Rescue (2015) 

When Gordon is involved in a bigger incident than Edward can help him out of alone, it happens near the tunnel Henry wishes to be released from.
Trackmaster Thomas and Friends Season 1 US Dub
Characters in this episode:
Edward
Henry
Gordon
Sir Topham Hatt
Links:
Official Twitter - bit.ly/2HqHFcD
UK Dub Channel -bit.ly/2H9WpgU
Archive Channel - bit.ly/2VNApvo
TTTE Community Admin Quiz Game - goo.gl/3JdF1p