Henry's Hero

Henry's Hero is the seventh episode of the seventeenth season.

Plot
Henry and Hiro are both very strong engines, but one day as they are working together they both start to billow dark smoke from their funnels. Duck tells them that they must have taken on some of the bad coal that was delivered that morning. Henry is worried that the bad coal will damage his firebox, while Hiro wants to keep on puffing and deliver their heavy load on his own. Will Hiro be able to manage without Henry's help?

Characters

 * Henry
 * Duck
 * Hiro

Trivia

 * This episode will mark the first appearance of Duck in full CGI.