In heat one, three teams offer their interpretations of James Bond, Jurassic Park, WWII flick The Longest Day, and a tour through Ealing Studios. But one team wilfully breaks the rules of the competition on day one.
The Diesel Dynamos, The Fawley Flyers and The Railway Children arrive at Fawley Hill in Henley-on-Thames, and are tasked with building railway layouts on the creatively taxing theme of `fire and ice'.
Three teams create best sellers based on the books of Lawrence of Arabia, HG Wells and Agatha Christie, featuring Roman ruins, alien motherships and the Orient Express.
Three teams create a bucolic landscape of crochet trees, massive replicas of Kings Cross and St Pancras station, and a fiendishly technical haggis delivery system.
Only two can make it to the last stretch, and with a tough challenge on a fabulous fantasy theme to overcome, any team could find themselves on the next train home.
The semi-finalists offer up blockbuster layouts based on Harry Potter, Jurassic Park and James Bond. Plus there is a mysterious operational challenge to overcome.
