A Spoiler-Filled Explanation of Everything That Happens in Season 3 of 13 Reasons Why

Justin (Brandon Flynn) is officially welcomed into the Jensen household, and Clay's parents proceed with next steps to adopt him. Old habits die hard for Justin, though, as he quickly slips back to smoking heroin, dealing drugs on the side, and sparking an old flame with his ex, Jessica.

In the end, he helps Clay prove his innocence and his relationship with Jessica deepens when he shares stories with her of being sexually assaulted as a child.