When people at Anne's shelter for the homeless report that the local police are victimizing them, Wesley, Cordy and unn discover the police are actually the reanimated corpses of officers killed in action.
The trio find themselves under siege at the shelter as the zombie cops fight to protect their secret.
Trivia: In a break from primetime American TV tradition, when Wesley gets shot in this episode, he doesn't miraculously recover until a good few weeks afterwards. He even spends some time in a wheelchair.
Anne's homeless shelter seems to have changed completely since Blood Money, the previous episode it featured in.