- At the high class Sedgewick Hotel, the Ghostbusters assure a nervous concierge that they'll handle the hotel's ghost problem discreetly.
- As they head up in the elevator, Ray worries about the fact that they haven't tested the new equipment.
- Their equipment consists of "proton packs, " which look like backpacks with a sort of hose-gun attached.
- Oh, also the proton packs are nuclear accelerators.
- Freaked out, the boys almost incinerate a maid with their proton packs.
- They spot a green slime ball ghost (Slimer).
- Slimer manages to get away from them, but not without covering Venkman with slime.
- Egon radios to say that the ghost is in a ballroom.