Like many, Michael Mosley want to get fitter and healthier but can't face hours on the treadmill or trips to the gym. Help may be at hand. He uncovers the surprising new research which suggests many of us could benefit from just three minutes of high intensity exercise a week. He discovers the hidden power of simple activities like walking and fidgeting, and finds out why some of us don't respond to exercise at all. Using himself as a guinea pig, Michael uncovers the surprising new research about exercise, that has the power to make us all live longer and healthier lives.

The actress immerses herself in Indian life as she travels the sub-continent from north to south. She begins in the chaotic city of Varanasi, taking a boat ride on the River Ganges and attending an evening ceremony in which thousands of people light lamps and pray to the river. After catching a sleeper train to Jodhpur, Caroline gets the chance to see the Taj Mahal in Agra, before visiting an infertility clinic in the small Gujarat town of Anand, where couples from other countries hire Indian women to carry their children

The actress travels by camel to the 'Golden City' of Jaisalmer, Rajasthan, where she meets Princes Shakti and Vikram Singh and hears about the history of the fort in which many of the population still live. Caroline then returns to Gurjarat to attend an Indian festival at Ahmedabad, before ending the second leg of her journey in the cosmopolitan city of Mumbai. Here, she learns more about the stray dogs that roam the streets, receives fashion tips from a Bollywood actress and watches a display of gymnastics

Setting off in Tanzania, they travel over the Ngorongoro Crater, where one of the world's densest concentrations of game inhabits an enormous extinct volcanic crater. Landing in the Serengeti, Stephen shadows a local vet on his rounds treating the wildlife of the famous national park. Then he takes to the air again, this time heading westward into the dense forests of Rwanda's Volcanoes National Park in search of one of the planet's most awe-inspiring animals - the mountain gorilla.