Ben Graham (Richard Coyle) and Alisha Cole (Indira Varma) are two lawyers about to witness something that will take them into a world of few moral certainties. They observe a miscarriage of justice on their own doorstep and, instead of giving in to the temptation to look the other way, they speak out. However, by trying to do the right thing, Ben and Alisha suddenly find themselves on the other side of the law enemies of the state.