Spidermandy / Be A-Fred, Be Very A-Fred.Spidermandy: When Billy finds his "son" Jeff the Spider lying in his bed with "Spider Pox", he goes to Mandy for help to get rid of the giant spider. While ignoring Billy, the next morning Mandy awakens afflicted by Spider Pox too, developing four additional arms and the ability to produce spider web. Mandy's condition progresses and she completely turns into a giant spider, who captures Billy's parents and Grim. Grim tells Billy that, to cure Mandy, he must use the venom of the spider that infected her. While Billy successfully gives Mandy Jeff's venom, he also carried the virus and infected the people of the city, who have all turned into spiders.
Be A-Fred, Be Very A-Fred: As Grim appears in an Underworld TV commercial for "Big Move" laxative pills, an accompanying contest promises a day with the famous Grim Reaper to the monster who writes the best 500-word-or-less essay describing the fun things they would do. It turns out the winner of the contest, and sole participant, is the dimwitted Fred Fredburger, who only wants to eat frozen yogurt. The Big Move company blames Grim for their sales going down since they hired him. In consequence, Grim tries save his reputation and make the best day for Fred, but it is a disaster with Grim ruining Fred's yogurt and Fred going missing in an amusement park. The Big Move executives give Grim a beating for ruining their company, and Fred finds his own paradise in a cold place with nachos- and frozen yogurt-loving creatures.