Phases

In which we learn that Oz is the strong, silent, hairy type.

Official back-of-box synopsis:

When a werewolf descends on Sunnydale, it is up to Buffy and the gang to protect the mostly-human being from an evil poacher, but Willow is completely unaware of the danger she is about to face after she turns her romantic interest from Xander to Oz.

From the old WB Buffy website:

WEREWOLF IN SUNNYDALE --When a werewolf descends upon the city of Sunnydale, it is up to Buffy and the gang to protect the mostly-human being from an evil poacher who is hunting the animal for sport. Meanwhile, much to Xander's dismay, Willow turns her romantic interests to Oz, unaware of the danger she is about to face.

Links:

This episode's page at http://www.restlessbtvs.com/, the Restless BTVS Trivia Guide

This episode's page at http://www.vrya.net/bdb/, the Buffyverse Dialog Database

Cross-reference:

episodes with gay themes:

• Doppelgangland
  Willow's alter-ego is 'evil and skanky and kinda gay'
• Earshot
  Larry's now so out he's got his grandma fixing him up with guys
• Conversations With Dead People
  Holden informs Buffy that her ex, Scott, has come out.
• this episode
  Larry is accidentally outed in the search for a werewolf

episodes with subtle callouts to previous episodes:

• Who Are You?
  Willow asks if Tara sensed any "hyena energy"
• Buffy vs. Dracula
  Xander is sick of being the guy who gets the "funny syphilis"
• Gone
  Xander asks Invisible-Buffy if she's been "feeling ignored lately"
• Chosen
  The earth is "definitely doomed" according to Giles
• this episode
  Oz notices a cheerleading trophy's eyes "seem to follow you"

Cast:

• Sarah Michelle Gellar as Buffy
• Alyson Hannigan as Willow
• Nicholas Brendon as Xander
  

  ---

• Anthony Stewart Head as Giles
• Charisma Carpenter as Cordelia
• David Boreanaz as Angel / Angelus
• Seth Green as Oz
• Larry Bagby as Larry
• Camilla Griggs as Gym Teacher
• Jack Conley as Cain
• Megahn Perry as Theresa
• Keith Campbell as Werewolf