London, 1751: It's hanging day at Tyburn and six men and three women are about to meet their end on the gallows. Come to see them hang is also Jack Blackstone, better known as Blackjack the highwayman. But Jack has not come to Tyburn merely to gawk at a public execution. For today Eliza Colson, Jack's beloved, will be hanged for a crime she did not commit. Jack will save her or die trying.