Euphoria

Seventeen-year-old Rue returns home from rehab with no plans to stay clean. She meets Jules, who’s new in town, at a party at McKay’s house.

On the first day of school, Rue has a new friend, Jules, but struggles to put the past behind her; Nate’s obsessions turn violent.

Kat starts camming; Jules falls for a boy online; Rue is confronted at NA; Cassie visits McKay at college.

Rue tries to get clean for Jules and chaperones Gia at the carnival; Jules encounters Cal with his family; Cassie and Maddy do Molly.

Maddy and Nate have to deal with a police investigation; Rue and Jules each reflect on their relationship; Kat embraces her new lifestyle.

On Halloween, Rue worries about her reliance on Jules when she starts acting strange; McKay questions his future; Nate comes up with a plan.

Rue gets depressed. Jules goes to visit an old friend. Cassie looks for advise in the aftermath of Halloween night.

In the season finale, it's the winter formal at East Highland.