Henry Gets Stumped

Henry Gets Stumped is an upcoming episode.

Plot
In honor of Earth Day, Henry and Wilbert try and save the forest from the Horrid Lorries.

Characters

 * Thomas
 * Henry
 * Gordon
 * Big City Engine
 * Wilbert
 * Harvey
 * Rosie
 * Sam
 * Rocky
 * Judy and Jerome
 * The Horrid Lorries
 * Madge
 * Colin
 * Sir Topham Hatt
 * Sailor John
 * Arthur (cameo)
 * Spencer (cameo)
 * Duke (cameo)
 * Skiff (cameo)
 * Monty (cameo)
 * Isobella (cameo)
 * Nelson (cameo)
 * Cranky (cameo)
 * Skarloey (mentioned)
 * Peter Sam (mentioned)

Trivia

 * This episode marks the first appearances of Nelson, sobella, Duke, Arthur, Colin, The Horrid Lorries, Wilbert and Big City Engine in full CGI.