Scrapheap Challenge: The Scrappy Races S02 E02 Giant Archery

This week, our teams are travelling 100 miles from the start line in Suffolk to 11th-century Rockingham Castle in Northamptonshire. Waiting for them is an appointment with a giant archery circuit. We're providing the arrows but the teams will be building the bows, which they have to attach to their radical roadsters. In order to succeed against our three intimidating medieval targets, our teams need to build some seriously strapping siege engines.