The story revolves around the journey of twins Dominador "Ador" de Leon and Ricardo "Cardo" Dalisay (both played by Coco Martin) were separated from each other because of financial reasons, even as they followed the path of being police officers.
Their lives take a sudden turn when Ador is betrayed and murdered by Joaquin after pursuing the latter's child-trafficking syndicate. Wanting to conceal the fact that Ador is killed in action, General Delfin Borja (Jaime Fábregas), Cardo and Ador's maternal grand-uncle and CIDG's Director, orders Cardo to assume Ador's identity and continue the mission his late brother left behind.
As part of his mission, Cardo is forced to pretend to his brother's family and friends; and reunites with his grandmother, whom he resents for deserting him. Nevertheless, he promises to find the person behind his brother's death.