Lauren and Amy host a house party; Karma reinvents herself.

Hester's future lies in the balance; Amy makes an important decision.

Lauren's quest to save Christmas at Hester puts Amy in a difficult position. Karma helps Felix get ready to ask out Amy, and Shane learns a secret about Noah.

As Amy and Sabrina grow closer, Karma looks for proof that Sabrina is bad news. Liam tries to set up Lauren, while Shane seeks advice.

As the new year approaches, Karma takes drastic measures to make Amy happy; Lauren is insecure when someone from her past reappears.