In “Yuck’s Amazing Underpants,” Yuck has been wearing his favorite underpants every day and every night—for six weeks. His mom desperately wants to do laundry but Yuck has other plans: With the help of a jar of mold, his underpants are soon taking on a life of their own....

     And in “Yuck’s Scary Spider,” Yuck’s spider is big, fat, and hairy, and everyone is afraid of it. But the spider is only trying to be friendly! When the school principal traps the spider under a glass in his office, Yuck plans a major rescue mission. Can he and his friends save the spider?