Hannah winds up at a party after an argument with her parents. The students are served with subpoenas, and Justin wrestles with conflicting loyalties.

Hannah witnesses a traumatic event at a summertime party. Clay tries to reason with Justin, and Marcus warns him that the worst is yet to come.

Inspired by a friend’s poetry reading, Hannah pours her heart out. Tony confides in Clay about the night of Hannah’s death.

Hannah and Clay connect at the school dance, but a crass rumor ruins the mood. Clay takes Courtney to visit Hannah’s grave.

Hannah thinks someone is stalking her and sets a trap. Hannah’s mother confronts the principal, and Clay strikes back at someone who wronged Hannah.

Jealousy and gossip take a toll on Hannah’s relationships. As Alex struggles with feelings regret, the guys pressure Clay into getting drunk.

Hannah makes friends with Jessica and Alex, two other new students. Justin doesn’t show up at school, and Hannah’s mother finds something troubling.

As the school mourns the death of Hannah Baker, her friend Clay receives a box of tapes with messages she recorded before she committed suicide.