Thomas is working at the Clay Pits when a storm closes in and the rain makes the clay cliffs unstable. A flash of lightning reveals what looks like giant footprints on the slope above, but a landslide has begun and Thomas cannot stay to investigate. Bill and Ben push Thomas to safety just in time. Unable to go back and confirm what he saw, Thomas tells Percy about it, but Percy quickly becomes convinced that there is a monster on the island. He even becomes frightened of taking the mail train at night. When an unusual engine with sloping boilers first appears, Percy thinks he must be the monster. James teases Percy and tries to scare him even more, but the new engine, who is called Gator, proves to be a good friend and ally, who helps Percy discover what it really means to be brave.
Production
CGI transition era — trains finally have faces that MOVE.
Director
Rob Silvestri
Mark Moraghan
Narrator / Bob (voice)
Ben Small
Thomas / The Troublesome Trucks (voice)
Clive Mantle
Gator (voice)
Olivia Colman
Marion (voice)
Mike Grady
Sir Robert Norramby (voice)
Keith Wickham
Edward / Henry / Gordon / James / Percy / The Fat Controller / Workmen (voice)
Teresa Gallagher
Emily / Rosie / Annie and Clarabel (voice)
Steven Kynman
Porter / The Dock Manager (voice)
Tim Whitnall
Timothy / Reg (voice)
Trivia, insights & behind the scenes
This was the first Thomas CGI film to get a limited theatrical release in UK cinemas, which feels like a flex.
Gator's design is based on real South American steam locomotives that worked in swampy conditions — the sloping boilers let firemen shovel coal uphill without dying.
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