10 PM, on the 7 May. The exit poll predicting the result of the 2015 General Election is announced. In that instant three lives are changed for ever. David Cameron, Ed Miliband and Nick Clegg were three very different men, from very different backgrounds. But they shared one ambition. To lead their country. In pursuit of their dream they were forced to make sacrifices. Of their principles. Of those they loved. Of themselves. And right up until the final moment the exit poll was released each man clung to the hope those sacrifices had not been in vain. Then the clock struck ten. In One Minute...