Five teams set off from Mexico City – a gargantuan metropolis and the largest Spanish speaking city in the world - in a race to reach the most southerly city in the world, Ushuaia in Argentina. Show more
With fat threatening to break the NHS, Miriam Margolyes continues looking at the obesity crisis and discovers a world of extremes. Show more
After a lifetime of worrying about her weight, 78-year-old actress Miriam Margolyes embarks on a journey to work out why the nation is getting ever fatter. Show more
The teams head out of Copan Ruinas in western Honduras to their next checkpoint – Panama City. Having raced hard in the previous leg, leaders Jo and Sam are keen to experience more this time. Show more
Chloe wants to take a picture of herself with Topsy, but he just won't stay still.
Chloe has volunteered to unpack the shopping for Mum. Unfortunately Topsy volunteers too after he smells his food, but he can't tell which bag it's in.
Chloe is getting ready to go to the dentist for a check up. Topsy is eager to get involved, so Chloe comes up with a way he can help keep his teeth clean too.
It's a hot day, and Chloe is filling up a paddling pool in the garden to dip her feet into. Topsy wants to join in with the fun and play in the water to keep cool too.
As the 25,000km race to Ushuaia approaches the halfway mark, the four teams compete, not just with each other, but with the extreme altitudes of Peru. Show more
Tensions reach breaking point between Kaya, Dan and Emily. When Kaya loses control, Dan questions what he really knows about the girl he has invited into his home. Show more