The Joke is on Thomas
- Episode aired Oct 29, 2021
When Diesel is late for a delivery, Thomas and Percy try to cheer him up but accidentally risk ruining Diesel's next job.When Diesel is late for a delivery, Thomas and Percy try to cheer him up but accidentally risk ruining Diesel's next job.When Diesel is late for a delivery, Thomas and Percy try to cheer him up but accidentally risk ruining Diesel's next job.