His consciousness returns, and he finds himself reborn in this perilous ninja world.
The good news: he opens his eyes as a member of the Uchiha clan, with a chance to awaken the Sharingan. The bad news: the night of the massacre is drawing near, and the fate of the entire clan hangs by a thread.
Since he is an Uchiha in this Hokage world and knows what lies ahead, he might as well follow his ambition and use this bloodline and looming crisis to carve out a path to power of his own!