Courtney makes a brave decision. Clay's memories of Hannah drive a wedge between him and Skye. Someone trashes the yearbook office.

Worried about threats against them, Alex and Clay urge Jessica to testify about Bryce. Clay enlists Tony's help to find a potential witness.

Clay hides a secret from his parents. Concerned about his reputation, Marcus lies in court. Jessica and Alex skip school together.

Tyler and Cyrus embrace their outsider status. Alex fights to recover his lost memories. Ryan and Mrs. Baker look to Hannah's poems for clues.

Clay tries to figure out where the Polaroids were taken. Justin shows up at school. Zach's revelation about Hannah takes everyone by surprise.

Alex blows up at Bryce. Someone blackmails Marcus. Clay testifies about a night he and Hannah spent together. Jessica experiences a flashback.

When Hannah's parents come under scrutiny, Jessica reaches out to Mrs. Baker. Justin struggles to stay clean. Clay reconnects with Skye.

Tyler goes out with Cyrus's sister. Chloe confronts Bryce about the tapes. Jess wonders if she's ready to date again. Mr. Porter wrestles with regret.

Tony opens up about his past. Sheri devises a plan to get into the clubhouse. Mr. Porter tries to help Justin. Zach and Bryce butt heads.

Chaos erupts at school in the aftermath of Bryce's testimony. Jessica tells Chloe about the clubhouse. Alex's memories come rushing back.

Threats against Clay and the others escalate. Tyler faces disciplinary action. Justin testifies about Bryce, putting his own future at risk.

One month later, Hannah's loved ones celebrate her life and find comfort in each other. Meanwhile, a brutal assault pushes one student over the edge.

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.

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

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.

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 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.

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.