Callum Wentworth enjoyed an idyllic childhood. That is, until the outbreak of the Lingering. With the arrival of the undead, young Callum lost everything. He lost his family, his home, his dog, and he almost lost his mind. Thanks to the love of an old man, Callum made it through the nightmare ... but he was changed. As an adult, Callum resolved to make the undead pay for what they had taken from him, and what better way to do that, than as a Ranger. For both the living and undead alike, Ranger justice is hard and unyielding. Rangers administer the rule of law on the run, and they will kill anything that questions their authority. To be a Ranger you must have speed, agility, and above all, a willingness to kill. All these things Callum Wentworth has in abundance, which makes him the Rangers' deadliest, and most unforgiving weapon.