Henry keeps feeling ill, unlike the other engines. It turns out that Henry's firebox is much smaller than the other engines', so the Fat Controller orders special Welsh coal that will allow Henry to work better. The Green Engine is thrilled with the results.
| Creator | Britt Allcroft |
|---|---|
| Actor | John Hasler, Joseph May |
| Country | Canada, United Kingdom, United States of America |
| Production | Nitrogen Studios Canada |