Air date: September 28th, 1998
During an extended stormy time, Toby is feeling miserable due to both the rain and the fact that his branch line runs through a village that is in danger of flooding from the rising river. The only thing preventing water from overflowing in the river is a dam. Percy arrives at the village beside Toby, who is about to investigate the dam for any concerns of damage. He informs Toby that crossing the dam in heavy rain could be dangerous, and asks Toby to be careful. Toby assures Percy he will try to be safe, and heads off to investigate the dam.
When he arrives at the dam, Harold is there inspecting it as well. Toby starts to cross cautiously, but his driver notices the dam is beginning to crumble, with water seeping through. The driver is now alarmed, and declares they must warn everyone to find higher ground. Toby races off the dam as fast as his wheels will let him.
Meanwhile, Percy is waiting on the other side of a wooden bridge at the end of the village, which is now in danger of collapsing due to the rising river. Toby's driver warns Percy and his crew about the dam and they need to find higher ground immediately. Percy explains their only chance now is to cross the bridge. Though believing it to be unsafe, Toby begins to cross the bridge. The dam however collapses as soon as Toby is halfway across and with the water escaping, the bridge Toby is crossing tears away from the riverbanks and is swept down the river, with Toby still on it. Percy follows the river down his own line to find Toby further downstream. Harold - having seen the collapsed dam - flies off to help rescue Toby.
Toby is floating helplessly along the flooding river when he sees a sign saying "Beware the Waterfall." As Toby and his crew approach it, they see Harold flying in urgently. He calls out that his crew is going to drop a rope to Toby, and that his crew must tie it to him. They rope is dropped and attached to one of Toby's buffers just as Percy arrives. Harold flies over to Percy and tells him to catch the rope and pull Toby to safety. The rope is dropped to Percy, and its end is tied to his buffer. Percy - puffing as hard as he can - finally pulls Toby back to safety.
When the flood subsides and the dam is repaired, a party is held in Toby's honour by the villagers and hosted by the Fat Controller, who is very impressed with Toby and Harold's bravery. Percy says he could not have been so brave, and Toby tells him he would not know until he tries.
Tropes featured in the episode:
- Big Storm Episode: The whole episode takes place during a huge storm on Sodor.
- Big Word Shout: Toby lets out a loud "HELLLLP!!!" after the bridge he is on breaks away and carries him down the river.
- Downer Beginning: Toby is unhappy due to the continuous rain.
- Earn Your Happy Ending: Toby is saved, the flood ends, the dam is mended, and The Fat Controller hosts a party to commend Toby's bravery.
- Inevitable Waterfall: Toby and his crew almost end up going over this, but are saved thanks to the intervention of Harold and Percy.
- Oh, Crap!: Toby and his driver's reaction when they saw the sign "Beware The Waterfall".
- Stock Footage: This episode begins with footage of Rheneas travelling past Hawin Doorey Castle from "Gallant Old Engine".
