Sully and Boo sneak around the office in an attempt to find Mike. During their search, Boo uncovers an underground passage, which they follow to find Mike and Randall. Randall is trying to get information from Mike on Boo's whereabouts, so he starts up the Scream Extractor and shows his intentions to use it on Mike. Although it's not clear what the scream extractor does exactly, based on hints from the scene and Mike's reaction, we can determine that it is not used for something positive.