Camp Stillwater is about to reopen after being closed down for years. Deb, the new owner, has thrown her heart, soul and life savings into renovating the camp she loved as a child. She isn’t the only one excited to return as six former campers—Alex, Jessie, Cricket, Joel, Blair and Blotter —join her as counselors hoping to experience the freedom that camp brings now that they are older. Not part of the old crew, Amy is not just new to Camp Stillwater, but to camp in general. While Amy tries her best to fit in with the already tight group, Drew is content to be left alone. As everyone settles in and prepares for the campers’ arrival, Amy is the first to get a feeling that something is not right with this idyllic summer camp.

The summer is off to a rough start for the counselors at Camp Stillwater and a night away in town is a much-needed break. Both Cricket and Jesse see the free time as an opportunity to make headway with their crushes, but when one of them goes a little too far the evening takes a dangerous turn. Stuck covering the campers while the rest are in town, Blair and Joel use movie night as a way to make their own romantic overtures. Meanwhile, flashbacks show why Cricket’s plans to attract Alex’s attention include insulting graffiti.

With a string of unfortunate events plaguing the start of the summer at Camp Stillwater, Deb decides to push up the masquerade ball to try and revitalize the morale. But as the campers begin the preparations for the ball, the counselors start to compare notes of the strange occurrences they have encountered. With too many weird things taking place to be a coincidence, Alex, Cricket and Amy are determined to get to the bottom of what is happening. As their investigation turns towards Deb, Joel finds himself in a tricky situation.

What was supposed to be a fun summer that the Camp Stillwater counselors would never forget quickly turned into a horrible experience they will be lucky to survive. As summer comes to a close, the centuries-old battle between good and evil at Lake Stillwater will be settled once and for all.