The Real Ghostbusters (1986)

S03E08 Halloween II 1/2

Samhain's mischievous goblins free Halloween's spirit from the Ecto-Containment Unit, transforming the firehouse into his stronghold. The Ghostbusters' efforts to defeat him are thwarted when the Junior Ghostbusters fall victim to the wrathful spirit. With their friends in peril, Slimer must step up and find a way to rescue them from the clutches of this formidable foe.