Rough Science
Swapping their high-tech labs for a unused prison, the five scientists are ferried to a mystery island where they must pool their collective wits. Can they work out their exact latitude and longitude, make an insect repellent and improvise a radio from an old saucepan?
Rough Science
Our scientists have worked out where they are on the globe, but can they improvise a low-tech camera and film, make a compass to get their bearings, and dye a flag? Seawater, seaweed and urine prove to be indispensable ingredients, but things don't quite go to plan.
Rough Science
Two of the team go head-to-head in a race to generate power, while the others set about building a pharmacy, extracting and dispensing a string of natural remedies.