Please Be Patient!

S18 E104: When Thomas and Diesel are sent to collect trucks from the Ffarquhar Quarry, they argue about who should be the back engine. Diesel suggests he take the trucks with Mavis, leaving Thomas to look after the quarry until they get back. When they don’t come back, Thomas gets fed up and decides to take another load of troublesome trucks on his own--and then there really is trouble! When Duck gets stuck on some flooded tracks, James is sent to fetch Rocky to rescue him. But James doesn’t wait for Rocky to secure his crane arm, and they end up knocking down a signal before they arrive at the accident site. Without a signal to warn them, the other engines don’t stop. What began as one small accident for Duck soon escalates into a much bigger one, involving several other engines!