March, 1944: US Army Lieutenant Billy Boyle, back in England after a dangerous mission in Italy, is due for a little R&R, and also a promotion. But the now-Captain Boyle doesn't get to kick back and enjoy his leisure time because two upsetting cases fall into his lap at once. The first is a personal request from an estranged friend: Sergeant Eugene "Tree" Jackson, who grew up with Billy in Boston, is part of the 617th Tank Destroyers, the all-African...