Griffin Campbell and his family move to a new town and take ownership of an abandoned hotel in hopes of restoring it back to the lively vacation destination it once was.

Griffin and Harper learn the camp dance is coming up, and that is the day Savannah went missing! Later, Harper meets Jess, and learns her mom did go to camp and hated Savannah!

A 12-year-old boy and a thrill-seeking classmate discover a secret portal that allows them to travel back in time and uncover clues about a mystery involving a girl who disappeared decades ago from a Louisiana town.

Griffin and Harper sneak back through the portal to find a search party looking for Savannah.

Griffin and Harper realize that Savannah could've traveled back in time.