Eliza Dushku returns as the character of Faith. Her last appearance on the show was in Season 4.
In a cross-over episode with Angel, she turned herself in for her crimes and has been in jail all this time. She then broke out to help Angel and then came to Sunnydale to help Buffy do battle with The First.

This episode scored a 3.1/5 in ratings for overnights.

This episode ranked 5 out of 10 UPN shows for the week.

This episode received a 2.3 in the national ratings.

Ranked 95 out of 113 prime time shows.

Amanda: What the hell are you talking about? I thought Faith killed a volcanologist.
Andrew: Silly, silly, Amanda. Why would Faith kill a person who studies Vulcans?

Xander: Well, that's where, generally speaking, you'd go to find the bad guy. And I don't think you came here to fight plaque.

Xander: I've been through more battles with Buffy than you all can ever imagine. She's stopped everything that's ever come up against her. She's laid down her life—literally—to protect the people around her. This girl has died two times, and she's still standing. You're scared? That's smart. You got questions? You should. But you doubt her motives, you think Buffy's all about the kill, then you take the little bus to battle. I've seen her heart, and this time—not literally. And I'm telling you, right now, she cares more about your lives than you will ever know. You gotta trust her. She's earned it.