Where To Stream Who Do You Think You Are? Season 20 Episode 3

As an adventurer, wilderness expert and chief scout, Bear Grylls has travelled to some of the most hostile environments in the world, sharing his survival secrets with audiences of millions. Bear is curious about a tendency to ‘follow the path less trodden' so he's now embarking on a journey into his family's history. The trail starts at home where, alongside his wife Shara, Bear explores his paternal grandfather Ted Grylls's old trunk, intriguingly full of documents marked ‘Top Secret'! Bear...