Cast
Two journalists traverse the Grand Canyon by foot, hoping this 750-mile walk will help them better understand one of America's most revered landscapes and the threats poised to alter it forever.
23 August 2019
22 April 2018
14 April 2001
26 November 2021
20 November 2019
15 December 2009
5 November 2014
27 October 2017
6 December 2018
28 June 2019
13 November 2017
3 April 2018
16 February 2018
24 March 2021
1 October 2019
13 February 2018
28 September 2018
25 December 2019
15 September 2021
13 October 2016
9 February 2019