Brennan and Booth travel to Washington state to determine how a human arm ended up in the stomach of a black bear.
As Giles continues training the Potential Slayers, Buffy goes out with Principal Wood and learns that his mother was a Slayer who was killed by a vampire in New York City.
While Buffy attempts to figure out the secret behind The First’s control over Spike, Principal Wood asks Giles to help him destroy Spike for good.