What would happen if time, the fragile thread that both leads and binds us, could be unwound as simply as untying a knot? Would we go back, charging through our own history, changing and tweaking, plucking at that fragile thread until time itself unraveled all around us? Would we create countless universes through which we could live our fantasies-or would we become our own nightmares? Would we blaze ahead, reckless and wild, into our own futures?...