Stephen embarks on another adventure that continues to challenge his loyalty, his friendships, and his faith. As the battle of a generation approaches, one of Stephen's mentors and friends goes missing, along with many more from Enclave. He soon discovers more secrets from among the Mighty, which causes him to doubt individual motives. As Stephen begins the search for his mentor, it isn't long before he meets heavy resistance from Fallen and even Enclave. Enclave insists the battle against Fallen takes precedence, while Stephen's need to find his friend begs to differ, causing a rift between him and some of the people he has grown to love. Through it all, Stephen must remember the charge previously given to him, "Find my lost sheep..." Join Stephen in his battle for the survival of Mighty and all mankind.