If you are doing a full series binge, "The Zeppo" sits in the middle of Season 3, right before the show ramps up for the ascension arc. It is often listed in Buffy Watch Guides as a "must-watch" standalone episode.
Feeling inadequate, Xander goes on his own solo "adventure" which involves:
A surprising and pivotal sexual encounter with the Slayer, Faith . [S3E13] The Zeppo
Meeting Jack O'Toole, a delinquent who turns out to be leading a group of zombies.
Getting roped into a night of crime and chaos with Jack’s undead friends, who plan to blow up the high school. If you are doing a full series binge,
While Buffy and the rest of the "Scooby Gang" are embroiled in a world-ending apocalypse involving the and a demon called the Sisterhood of Jhe, Xander is told by Cordelia that he is the "Zeppo" of the group—the one who doesn't contribute and is just there for comedic relief.
This was one of the first times a major genre show did a "lower decks" style episode, focusing on a supporting character while the main action happened off-screen. Watch Order Context Meeting Jack O'Toole, a delinquent who turns out
It marks a turning point for Xander. By the end, he gains a quiet confidence, knowing he saved the school without needing external validation or praise.