The Spirits of '76

In Washington D.C., the gang gets locked up in the Smithsonian Institute for the night. This institute, if you don't know, is chock full of antiques, inventions, and of course Ghosts! Like the ghosts of Benedict Arnold, William Devonne, and Major Andre.

Culprits

Mr. Clive the security guard

Mr. Wilit the city engineer

Their friend