Detective Comics (Vol. 1)

Issues #575 - 578 -- "Batman: Year Two" Batman's back, and it's is sophomore year in Superhero University! And by that I mean, whoops, Batman finds himself in a position where he needs to work with his parents' murderer in order to catch Gotham's newest (or OLDEST, rather) vigilante! Oh snap, son! That's gotta hurt! Wakka wakka! 4-issue storyline
Issues #934 - 940 -- "Rise of the Batmen" Batwoman's father, Colonel Jacob Kane, is raising an army of Batmen in order to fight the mythical League of Shadows, an organization in Gotham that doesn't fucking exist but Col. Kane sure seems to think it does. And he's willing to risk everything, even his daughter, to meet his objectives. 7-issue storyline