When senior class clown Dylan Maxwell is expelled for vandalism, sophomore Peter Maldonado begins an investigation that questions Dylan's guilt.

Peter scrutinizes the motives of Ms. Shapiro, the Spanish teacher who testified against Dylan. Another teacher makes a surprising accusation.

Key witness Alex Trimboli's account of the incident comes under fire when other students doubt his boasts of drunkenness and sexual exploits.

Peter and Sam highlight Kevin McClain and his friendships as they start to break down the version of events supported by the school and police.

Peter takes a close look at the "Morning Show Nine," a group of students -- including Peter and Sam -- who had access to the missing security footage.

As Peter and Sam continue to gather information, they run afoul of the school administration and could lose access. Dylan prepares for his trial.

As Sam and Peter comb through digital clues, they hope a technology glitch might open up some new leads. But a low-tech discovery leaves them reeling.

A former janitor becomes a potential key witness, but Peter and Sam struggle to track him down. Meanwhile, they examine a student trip to Costa Rica.

Peter and Sam travel to a prestigious private high school in Bellevue, Washington, to document the story of a filthy vandal called the "Turd Burglar."

As Peter learns more about basketball star DeMarcus Tillman, he uncovers evidence of athletes getting preferential treatment at St. Bernardine.

An interview with a former St. Bernardine student gives the guys confidence that they're on the right track with their most recent theory.

After the documentary goes viral, Peter deals with publicity and sorts through various fan theories. Video evidence from a party provides new clues.

Peter is forced to reckon with his actions and attempts to learn lessons in the aftermath of the documentary. But the investigation might not be over.

Peter and Sam follow a lead that could reveal the vandal's primary target, and a new theory gives them hope that they may finally solve the case.

A student's sudden lack of cooperation slows the investigation, but an incident in the school parking lot sends Peter and Sam down a new path.

Who is the Turd Burglar, and why did they do it? Are Peter and Sam still chasing the truth, or has it been right under their nose the whole time?