The Thin Dead Line

Unbeknownst to Gunn, Cordelia and Wesley, Angel investigates a squad of zombie policemen who assault homeless street kids and anyone in their path, a case also brought to the Gunn-Cordy-Wes trio by Anne. While Angel teams up with Kate to investigate the source of the undead cops, Wesley ends up getting shot by one of the policemen and Gunn, Cordelia, Anne and some street kids are forced to hold up in the homeless shelter while the zombie policemen try to claw their way in and kill them all.