Shortly after the students elect Mel the president of the student council, she is dethroned after the unlikely Ranger proves himself to be the stuff of legend and becomes The Once and Future Student Council President.

To celebrate a rare astronomical event, Mel invites all her friends to a spooky sleepover, complete with ghost stories galore. But when it seems like an actual spirit has crashed the party, they all must hurry to solve the mystery before they become ghost stories themselves.