Next on the agenda for the hopefuls is one of the most difficult physical and mental tests of the entire officer training process. Known as ABLE, this is where the officer cadets spend 4 days and nights living on and trekking across Dartmoor, one of the wildest and harshest environments in the country. Carrying 60lbs backpacks they hike through marshes, across rivers and up and down tors. With barely any sleep and no shelter from the extreme weather conditions, the cadets are pushed to their limit. Worse, in spite of the awful conditions, their leadership skills are assessed throughout. And only those who pass stand a chance of proceeding onto the next phase of training. Even before they are allowed out on the moors, they are tested through a series of field exercises called Build or Basic Leadership Development. Will our wide-eyed new recruits have what it takes to get through ABLE or will they be some of the 15% that never make it?