Euphoria

Rue returns home from rehab and meets Jules; Nate and Maddy attempt to make each other jealous; Kat is pressured to lose something.

On the first day of school, Rue struggles to put the past behind her; Nate's obsessions turn violent; Kat finds a video of her online.

Kat starts camming; Jules falls for a boy online; Rue is confronted about her lies at NA; Cassie and McKay spend the weekend at his college.

Rue, trying to get clean for Jules, chaperones Gia at the carnival; Kat misreads a situation; Jules encounters Cal; Nate reveals who he really is.

In the aftermath of the carnival, Maddy and Nate are forced to deal with a police investigation; Jules begins to feel pressured by her role in Rue's sobriety; Cal worries about his actions.

On Halloween, Jules starts exhibiting concerning behavior; McKay questions his future in football; Cassie spends some time with Daniel; Kat continues to push Ethan away; Nate comes up with a plan.

Rue falls into a depressive episode and binge-watches 22 episodes of a British reality show; Jules visits an old friend; Cassie looks for advice to help her deal with the fallout of Halloween night.

It's the winter formal at East Highland.