Cassius Black has spent his whole life expecting to become an Alpha and inherit his powerful clan. Instead, after a wild initiation ceremony he can barely remember, he wakes to an impossible revelation: he is an Omega — the first man in 300 years capable of carrying a child — and he is already pregnant. Three powerful Alphas were seen with him that night, and any one of them could be the father. Now all three arrive at the Black residence, each seemingly determined to win Cassius for himself. But choosing the wrong Alpha could endanger his unborn child — and Cassius has no idea which of them he can trust.