He flies, he flips, he falls! Bear Grylls is going on tour " with Endeavour, an acrobatics spectacular celebrating great survivors. But first he gives our writer a crash course on his wall of death …The mood around Pinewood studios is one of hushed awe and deep secrecy. Bear Grylls is rehearsing for Endeavour, a stadium tour with a difference, the difference being that this is surely the first time " or the first t…
