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 realize they've time traveled to before Savannah's disappearance. When they go back again, they think they see Savannah getting taken into the woods.
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!
Harper asks Griffin to meet her at the portal after school, but, when Griffin gets home, he discovers his Grandfather has arrived for a visit.
Ben is upset by the flurry of news reports marking the thirtieth anniversary of Savannah's disappearance, while Zoey and Wyatt see it as the perfect opportunity to finally capture her ghost on tape.
Young Jess dares Savannah to spend the night in The Tremont basement with real ghosts. Young Ben comes to Savannah's defense. Young Jess storms off and wishes Savannah gone.
Griffin and Harper sneak back through the portal to find a search party looking for Savannah; police officers begin their questioning.
Griffin and Harper realise that Savannah could have found the portal and travelled back in time, too; together, they go back in time another 30 years to 1960.
Griffin and Harper use the old radio in the hidden room to lead them back to Savannah.
Griffin and Harper set the dial on the radio to take them back in time where they hope to find Savannah and they are shocked by what they uncover.
Harper goes back in time and finds her dad who takes her on a ride down memory lane.
