Demonstration review of Thomas The Tank Engine Thomas & Friends Trackmaster Daring Drop Set from the Blue Mountain Mystery Film. This is the same size as the New Risky Rails Set except that it has no boulder, no truck and no zip-wire.br If you are looking to buy a Blue Mountain Mystery Set have a look at this and our "Risky Rails" video to see the difference. We thought we had ordered the same sets. We got the Risky Rails from the US and this Daring Drop set from the UK so be careful when buying.br br Subscribe to Our Channel here br Here at ToyTrains4u we make story, educational and review videos of all our favourite toys. So if you like to see the toys you actually play with featured in stories then Toy Trains 4u is the channel for you. We also have a lot of toy surprises by way of toys in surprise eggs or toys concealed in Play Doh.