Our story opens as Minga falls hundreds of feet into a deep, deep hole. (She's fine.) Meanwhile, mother begins to worry about her lost daughter and sends Gumby out to find her. Unfortunately, she didn't tell anyone where she was going. Gumby and Prickle jump to some very fortunate conclusions and go looking for her in a book about caverns. (Good thing she had a poster of a cavern in her room instead of one of her favorite band.) Absolutely nothing interesting happens as Gumby spends the last three minutes of the cartoon bringing Minga up out of the hole. Gumbo then decides that Gumby will work for the fire department, whether he likes it or not.