In Blake Crouch's heart-pounding novel 'Upgrade', we follow Logan Ramsay as his cognitive abilities and physical performance suddenly enhance beyond human norms. He realizes that his genes have been hacked, marking the beginning of an evolutionary leap orchestrated by unknown forces. With his family's dark past intertwined with his present, Logan holds the key to halting a global plot that seeks to execute similar genetic upgrades on a mass scale, threatening the essence of humanity. As Logan grapples with his new prowess and the weighty responsibility it brings, he is forced to ponder the ethical ramifications of human enhancement. With the lines between ally and adversary blurred amid a high-stakes battle, Logan's journey is as much about saving mankind as it is about realizing the infinite capacities and potential pitfalls of human evolution.