Climax

Climax is the seventh episode of Season 1 American Vandal.

Summary
Peter and Sam look up the faculty files and find a student complaint report filed against Rafferty for "inappropriate conduct to a student". Hearing about their investigations, Rafferty tells them that the reason for these complaints was that he had a relationship with a student's mom and didn't identify her to keep it confidential, provoking the duo to search and cross-reference the identity of the woman based on Rafferty's Facebook friend list and a list Sam created detailing Hanover's hottest moms, leading them to Mackenzie Wagner's mom.

This newfound clue convinces Peter that Mackenzie is the most likely culprit. Peter tries to explain this to Dylan, who rebuffs him. Peter deduces that Dylan and Mackenzie worked together to draw the penises on the cars, provoking Peter to have a volatile argument with Dylan. He then confronts Mackenzie and accuses her of the drawings, causing Mackenzie to suffer an emotional breakdown and chastise Peter for accusing her; she also accuses him of making the documentary as a frustrated response to him being a "nobody". She later manages to prove her innocence by giving Peter a link to a video on her Twitch live stream, which was shown to Dylan. Peter asks Dylan who the video needs to be shown to, which a shocked and distraught Dylan responds with one line: "Everyone."