Diana 'Steve' Escott-Stevens knows the risks. For 12 months, she has fed and looked after agents preparing for a mission in France. She knows that they have a fifty-fifty chance of coming back. She is young, brave and speaks French fluently, so when she applies to join the Special Operations Executive she is readily accepted and sent off for training to prepare her for the field. The training is demanding; sabotage, codes, hand-to-hand combat, parachute jumps, but all too quickly she is flying to France, where any mistake could mean capture, torture or death, for her and others.