Gone

In which more than Buffy's motives are transparent.

Official back-of-box synopsis:

A social worker threatens to take guardianship of Dawn. Meanwhile, Jonathan, Warren and Andrew's latest gadget makes Buffy invisible... and threatens to turn her molecular structure into goo.

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 subtle callouts to previous episodes:

• Phases
  Oz notices a cheerleading trophy's eyes "seem to follow you"
• 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"
• Chosen
  The earth is "definitely doomed" according to Giles
• this episode
  Xander asks Invisible-Buffy if she's been "feeling ignored lately"

Cast:

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

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• James Marsters as Spike
• Danny Strong as Jonathan
• Emma Caulfield as Anya
• Amber Benson as Tara
• Michelle Trachtenberg as Dawn
• Adam Busch as Warren
• Tom Lenk as Andrew
• Daniel Hagen as Frank
• Susan Ruttan as Doris Kroeger