Generals of the Han Dynasty

At the end of the Western Han Dynasty, Wang Mang came to replace the Han Dynasty, and troubled times arose. How does a young man grow from a commoner to a peerless general in these troubled times? He didn't know whether the Wang Mang he followed was a traitor who usurped the Han Dynasty or a scholar with empty ideals. He only knows that he is a general, protecting his family and country!