"Knight Terrors, Part Two: Call Waiting"
*After the cataclysmic events of BATMAN #55, our hero doesn't remember training to fight, being a member of the Bat family, or being a superhero...and he could not be more content. It's his life, and he's happy to just live it with new friends and a roof over his head (wherever that roof might be). So when Blüdhaven finds itself without a protector and a new group of vigilantes pick up the slack, Grayson is more than happy to yield any perceived responsibility to the people of the city. But as things start to spiral out of control, muscle memory kicks in...and he is startled to discover that he's more than just a pretty face. *Source: dccomics.com