Fresh out of treatment, Mia's ready to get back to her life — only to discover her friends have been drinking, partying and hooking up without her.

Post-party gossip gives Mia flashbacks from the hospital. Between an invite from her crush and karaoke with the crew, it's time for a bigger bucket list.

Daunted by crossing "sex" off her list, Mia opts for "breaking the law" instead. During a mansion rager, hard liquor and harder truths flow freely.

A shared suspicion brings Mia and Alison closer together and finds them on a spa day with Viv. As Becca confides in her mother, Will speaks his truth.

In Mia's shadow, a frustrated Alex feels mounting pressure to be perfect. The Polancos meet for a family therapy session after a harrowing school day.

Mia's 17th birthday party ticks several boxes on the list, but there's no shortage of drama. Cam combats jealousy and indifference; Will runs his mouth.

Viv makes a distressing discovery. Devastating news about an old friend reignites Mia's rush to finish the list. But when is it time to stop running?