INULTRA

Andreas Kieling continues his journey east, exploring the coastline and rainforests on his way to see South Africa's largest inhabitants. A head for heights and a strong stomach are needed for a bungee jump from the magnificent Bloukrans Bridge.

Stage four of his journey takes Andreas Keiling from ocean to mountain, from swamp to sand dune, as he makes his way to a spectacular Lakeland water park. His day starts with a nerve-wracking dip in the ocean to swim.

Soaring above the Rhön, Andreas Kieling explores volcanic basalt rocks, Europe's largest raised bog, and the massive Monte Kali salt mountains.

Deep in the unspoilt forests of the former border, Andreas Kieling tracks the shy lynx and elegant wood grouse across the Harz Mountains.

Emma meets Dr Asad Khan, whose life was upended by long COVID, as new research seeks answers for millions still suffering worldwide.

Emma Keeling treks through Romania's Tarcu Mountains to see how European bison, once extinct in the wild, are making a comeback.

Exploring in the industrial Ruhr District in Germany, Josh discovers abandoned steel and mining factories and experiences a miner's life underneath the ground.

Cody experiences the 'Island life' on the Isle of Wight, England, a heaven for urban exploring including a medieval lighthouse and a derelict holiday resort.

Joining Tianran to experience the culinary culture and urban character of this tropical paradise, from light and sweet coconut chicken hotpot to refreshing herbal desserts and spicy rice soup.

Dr Jack Lewis meets an incredible man who woke from a coma to find his brain producing a string of lies. He was confabulating.

Explore the science of hypnosis and persuasion and discover how even a hardened sceptic can be convinced, Dr Jack himself included.