Kari and the Sleeping Giant

In Trolldalen, where a girl named Kari spends her vacation, a midsummer solstice celebration is coming up—local bikers decide to throw a rock festival for it. They make such a racket that even a waterfall dries up; then a Viking ghost appears, and after that the thing that even mountain trolls fear finally wakes up… Desperate and curious, Kari is again right in the center of events.