Angie Dymott is leaving her job as a paramedic in Cardiff, South Wales, to join the Bomberos of Guatemala City, the capital of Guatemala, and one of the most murderous places on earth.

London bus driver Josh West heads to Manila, the capital of the Philippines and the most densely populated city on Earth. Josh will be driving a colourfully decorated jeep which has no power steering, unreliable lights, and an uncomfortable seat.

Midwife Suzanne Saunders-Blundell abandons the high-tech maternity unit at Good Hope Hospital in Sutton Coldfield to work in Monrovia, the capital of Liberia in West Africa.

London sanitation worker Wilbur Ramirez is heading to Indonesia. For ten days Wilbur works with Imam, one of the army of sanitation workers who collect rubbish in one of the biggest and fastest growing cities in the world.

Fisherman Andy Giles gives up his state-of-the-art trawler to travel to the coast of Sierra Leone, where the fishing is done from a dugout canoe. Andy discovers a very different way of life where a bad day's fishing means a hungry family.

Train driver Simon Davies usually drives the high speed Pendolino between London and Manchester, but now he faces a very different challenge as he travels to Peru and one of the highest and steepest railway lines on earth.