The Story
Barbara tries her very best to end the Joker, after he kidnaps her mother and mutilates her hand. Joker proposes to Batgirl, but reveals that he intends to saw off her arms and legs and keep her in a basement. James, Barbara's brother, tricks her into believing he's freed their mother, while in fact he has made a deal with the Joker and sold Barbara out to him.
After the events of
Death of the Family, Barbara works to take down the thugs that worked for the Joker. She sends their profiles to the police, but has to intervene when the supervillain Firebug gets involved.
The Review
Out of all the tie ins (With the exception of
Red Hood)
Batgirl has the most personal stakes in the game. While pretty much all the members of the Bat Family, with the exception of Batman himself, vow to themselves to kill Joker, with Batgirl it makes the most sense (again, with the exception of Red Hood). For characters such as Dick and Tim it feels out of place to have them suddenly vowing to kill the Joker. Granted I can understand how this traumatic event is meant to shake up Dick's life enough to take him in a new direction, but it still feels ultimately out of character.