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 police bring in Tony for questioning. At Bryce's funeral, Ani uncovers two damning secrets.

The police interrogate Justin and Clay about the night Clay pulled a gun on Bryce. Clay discovers that Ani and Bryce's bond ran deeper than he realized.

Mr. Porter interviews students about Clay, who pleads his innocence to Mrs. Walker. Learning Porter counseled Bryce, Clay and Ani question his motives.

Hannah's mother returns to town. Urging Clay to protect himself, she reveals that there was more to Tony and Bryce's relationship than Clay knew.

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.

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.

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.

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.

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