Grand Slammers: Inside HMP The Mount

England Rugby World Cup-winning legends Martin Johnson, Jonny Wilkinson, Lawrence Dallaglio, Phil Vickery, Jason Robinson, Will Greenwood, Ben Cohen, Mike Tindall and Matt Dawson are back together in the only fitting location: prison. The team go behind bars to face their toughest challenge yet as the sporting heroes enter HMP The Mount prison to attempt to build and train a squad of inmates strong enough to compete in just eight weeks.