The Real Ghostbusters (1986)

S6E12 Guess What's Coming to Dinner

During the Ghostbusters' vacation, a bizarre ghost family takes over their firehouse. When they return, they are shocked to discover their beloved space has been completely transformed, with their ghost-fighting gear discarded and the Containment Unit in disarray. The team must deal with the chaotic aftermath of their unexpected guests and reclaim their headquarters from these mischievous spirits.