The cops question Clay about Bryce's disappearance. Clay remembers the aftermath of Spring Fling, when he raced to cover Tyler's tracks and met Ani.

After learning about Chloe's pregnancy, Clay and Ani pay her a visit. Chloe recalls how she leaned on Zach for support -- and that Bryce never knew.

As the police investigation sets the school on edge, Ani remembers that Jessica confronted Bryce. Growing suspicious of Jess, Ani and Clay follow her.

After Tyler admits he still has a gun, the group keeps tabs on him at school. But their worry deepens when they learn he had a motive to kill Bryce.

The police search the school after finding steroids in Bryce's car. Alex remembers how Bryce supported Alex after Jessica dumped him.

The cops name Clay as a person of interest in the murder. Ani catches Justin in a lie after learning Bryce bailed him out of a dangerous situation.

As the cops close in on Clay -- their main suspect -- violent confrontations at the homecoming game expose that everyone had a reason to kill Bryce.

The pressure of Clay’s arrest leads his friends to make risky decisions, and the full story of the brawl that erupted at homecoming emerges.

Clay is released on bail, Ani puts a plan to exonerate him into action, and the truth about Bryce's murder finally comes to light.

The police question Tyler about the guns, leaving the friends rattled. Winston transfers to Liberty High after getting expelled from Hillcrest.

After an incident at school, Clay thinks someone's trying to set him up. Zach and Clay land in hot water during a college tour.

As the school gears up for the Love Is Love dance on Valentine's Day, disturbing phone calls keep Clay from getting in the spirit.

Clay is forced to confront his anxiety on the senior camping trip as a suspicious email threatens to turn the friends against each other.

The Jensens make the boys take a drug test. When the Liberty parents learn about an upcoming party, Clay suspects that they're tracking the students.

The school goes into lockdown, and Clay, Tony and Justin worry about Tyler's whereabouts.

Clay's mental health continues to decline as the friends wrestle with difficult emotions during their college admissions interviews.

In the wake of the lockdown, the school is on edge — and a troubling abuse of power pushes the students to take action.

When the dean begins a new investigation and threatens to cancel prom, the friends decide to confide in their parents ... but not about everything.

Strengthened by the struggles they've endured, the friends say goodbye to high school and look toward the future.