Brock Rumlow, aka Crossbones, was a member of Hydra in Captain America The Winter Soldier. What if, instead of working to further Hydra's goals, he makes the decision to turned on them? Why would he make that decision? How would it affect everything else, to include Hydra's rise and subsequent fall at the hands of Captain America? In this first book, Rumlow's change of heart comes at a cost, after a horrific event pushes him to fight against them under circumstances that are substantially different from the events of the movie. Even a small change leads to an alternate timeline, but there are related changes in addition to his that will lead to a potentially catastrophic outcome. It's a prism of endless possibility, where a singe choice can branch out into infinite realities, creating alternate worlds.... Ponder the question... What if?