After surgery and 18 months of rehabilitation Jack, 32, is fit and ready to take on his greatest challenge yet. (Image: Daily Mirror/Ian Volger)Hurtling towards the ground at 120mph, British adventurer and endurance athlete Jack Jarvis pulled on his parachute cord. It was his 26th skydive and nothing had ever gone wrong before. But this time the chute wrapped around his leg and wouldn’t open properly. “I was at 3000ft and it got stuck round my leg,” he told the Daily Express in an exclusive interview ahead of his next big challenge. At that speed the sheer force of the…

