>> danny teams up with filmmaker stu thompson to shoot a segment of a documentary focusing on urban sports called concrete circus. >> we just tried to come up with a five-minute film that showed danny in the best light, really. >> their first challenge is to find a location. >> i was looking for old buildings, old concrete as our back drop. >> they find that, and more when they come across an abandoned ironworks factory and train yard in the scottish countryside. >> the location is so stunning. >> it's beautiful. the cars are incredible. >> over the course of a grueling week, danny and stu meticulously plan out and shoot various stunts. >> it's horrible. >> he likes to push himself really hard, so there's a big