The senior Ghostbusters turn the business over to their sons.

The Ghostbusters go to the future where they learn of an ancient tablet with clues to their fathers' location.

The Ghostbusters help wizard Fuddy defeat Sir Trance-A-Lot and recover a piece of the stone.

The Ghostbusters travel back to prehistoric times after another piece of the stone.

With the help of their fathers, Jake and Eddie defeat Prime Evil and his horde.

The Ghostbusters travel to the Salem witch trials to save Futura.