Scooby-Doo! Mystery Incorporated Season2

The return of the original Mystery Incorporated to Crystal Cove begins a race between the two groups to locate the pieces of the enigmatic planispheric disk, which will point the way to the cursed treasure beneath the town. As the pieces are gathered, it becomes apparent that these two groups are not the only teams of mystery-solvers that have lived in Crystal Cove: many similar groups, always made up of four humans and an animal, have existed, and the secret behind their centuries-long connection will reveal the truth behind the curse of Crystal Cove. The fate of both the gang's friendship and all of reality itself hangs in the balance as extradimensional forces gather in preparation, and the time of Nibiru draws near.