Nellie and Josh hit it off until she learns about a long-standing and controversial rule held during the Crown Lake Boys' Treasure Hunt.

Unable to cope with the drama of Crown Lake, Nellie returns to Attaway, but quickly discovers that things aren't much better at home.

After the Scavenger Hunt debacle, Nellie returns to Crown Lake with a vengeance.

Nellie uncovers a sad truth behind Tiffany's tough exterior. Meanwhile, Ryan investigates some of the strange goings-on at Crown Lake... with Nellie at the center.

Nellie attends the masquerade ball, but uncovers much more than just the faces behind the masks.

A new semester at Crown Lake means it's time for "Heather" to find a new target...but, is Nellie up for the challenge?

Nellie and Lucy devise a plan to knock Tiffany off her throne. Meanwhile, Lola ruffles feathers on the wrestling team and Josh shares his concerns about Nick's "cures."

With Tiffany's secret exposed, Nellie rises up as the new head of the popular girls. Meanwhile, Chloe faces her inner demons as she navigates her feelings about Lola...

It may be the season finale, but the mystery is far from over. Nellie, Chloe, and Tiffany work together to uncover a long-held Crown Lake secret that could change everything... but, will it be enough to reveal Heather's identity and stop her, once and for all?