Phil is joined by SAS hero Billy Billingham - the lead instructor on SAS: Who Dares Wins - and his bulldog Alfie. Phil learns about Billy's inspirational life story as they walk, from knife fights on the streets of Walsall to serving his country on battlefields across the globe in the world's finest special forces unit. Billy shares insights into his extraordinary career and introduces Phil to the philosophy that helps him always go a little further.