Ep 11. Gone

In season 6 episode 11 of Buffy The Vampire Slayer, titled "Gone," the Scooby gang is faced with an unusual problem when the Buffybot goes haywire, causing Buffy to accidentally turn invisible. With Buffy completely invisible and unable to control her powers, chaos ensues as she roams the town, wreaking havoc and causing mayhem.

As the gang struggles to come to terms with Buffy's condition, they must also deal with a new threat in the form of a trio of nerdy villains who are determined to take over the world. Led by Warren, they use a device to control the minds of their targets, leading to a dangerous confrontation with the Scoobies.

As the gang tries to track down Buffy and find a way to reverse her condition, they must also try to stop the nerds from carrying out their evil plan. Along the way, secrets are revealed, relationships are tested, and the fate of Sunnydale hangs in the balance.

With plenty of action, humor, and heart, "Gone" is a standout episode in the series, showcasing the strengths of each character and demonstrating once again why Buffy The Vampire Slayer is one of the most beloved shows of all time.