Olympic wheelchair basketball champion Ade Adepitan challenges a group of teachers to attempt a military assault course in order to raise money for Sport Relief.
Phil McCullagh, Lorraine Robinson-Smith and headteacher Colin Mackinlay from Coulsdon High School in Surrey are put into training for a punishing military style endurance course. The worst bit is: they will have to compete with the whole school watching.
Ex-Royal Marines commando Nick Schofield helps put the teachers through their paces with a series of exercises designed to test their team skills, stamina and staying power. Will they be able to do it, or will they end up stuck in the mud?