By Megan Janetsky
By Will Grant
BBC Central America correspondent
Simon Reeve continues his journey through the Americas. In this fifth leg, Simon travels across Central America from the Caribbean to the Pacific.
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.
First transmitted in 1978, this programme focuses on the day to day lives of the British troops guarding the Belize/Guatemala border and their celebrations on Christmas Day, 1977.
Riot police were deployed and lawmakers had to be evacuated amid the protests.
By Mira Galanova
By Alice Evans
In Guatemala, the vice-president says anyone who comes to the US border illegally will be turned back.
By James Rodríguez