Beth and her Father have walked into the lion's den confronting Voltron, who reveals his cards. It's a race against time to find the real Beth - is she even alive? The situation escalates as the final violent climax approaches at break-neck speed.
Machine//Heart is a sci-fi action drama, which tackles 'identity', and begs the question... what makes you, you?
— Description from Comic Vine community (comicvine.gamespot.com).