Nightwing, Vol. 2 #133A

321 Days, Part One
In foiling a kidnapping attempt, Dick Grayson stumbles across a face from his past. Liu, a woman he loved several years ago, but who as Robin he'd had to bring to justice. Now she's the target of some kind of cimrinal organization. But not only is he rescuing her as Nightwing... she looks him up at his job. And wrestling with his own judgement, begins to get involved with her again.
Release Date: 2007