Season 2 Episode 14
Episode aired february 13, 2001
angel, gunn and wesley battle zombie police officers who have been stalking street kids.
when she's at the shelter, cordelia exclaims that a girl is wearing her shirt - 'hey, that's my--sorry. i have a shirt just like that.' cordy is indeed correct, as it's one of the pieces of her clothing angel donated to anne in the previous episode blood money (2001).