The Adventure Travelers have stationed themselves at Little Bear for their first years' Halloween in Master Adventure Trailer Ms. Lily. All Hallow's Eve begins at McGrizzly's farm where the older boys discover a section has been taped off with yellow caution tape. Inside the taped area is a paw print from Momma Grizzly's ghost, and from here the haunting facts and legends are shared by McGrizzly himself as the boys select a pumpkin for carving from his daughter, Lil' Meg's unusual patch. But when they return, Mother notices the air has changed. It is suddenly freezing cold and the roots of trees in the forest surrounding them are covered in a lighted fog known to the locals as the Fog of Sorrow. And from this point on the adventure turns from exciting to absolutely bone-chillingly frightening. Come along with the boys as their first haunted hayride reveals that even Father has a scare-limit.