Griffin and Harper successfully travel to the past, where they find Savannah working at The Tremont.

Griffin, Savannah and Harper find themselves face to face with Harper’s carbon copy, Daisy, and the Tremont ghost sends Harper and Griffin an important message.

Harper pretends to be Daisy to learn her family’s secrets, and Topher stumbles upon the hidden bunker.

When Sam can't get his Time Machine to work, Savannah vows to help him! Meanwhile, Griffin tells Daisy that he thinks Topher is hiding something and enlists her to find answers.

The Tremonts were duped by the Judge and have 48 hours to vacate their land. Meanwhile, when Griffin and Daisy rush towards the portal with the crystal, everything goes black!

Harper returns home and fills Griffin in on the deed, stolen land, and her visions of a fire. After Sam disappears, Savannah finds a note saying that he’s travelled to the future.

The Campbell's and the Dunn's prepare for the Tremont’s Grand Re-opening! Harper and Griffin realize that the crystal is cracking which may prevent the Time Machine from working.

Harper and Savannah retrieve Griffin from the future. Sam and Griffin face the grimmest truth, Topher is in a coma in 2024. The twins and Topher almost catch Savannah’s “ghost.”

The twins arrive in the past and find Savannah. Griffin and Harper realize they need to go back to 1947 just as Ben makes the bunker off-limits.

The ghost will go, but will their future be saved?