Grandpa More Dangerous Than Computer

8 year-old Oskar's summer vacation starts miserably. He has to stay with his grandparents in the countryside without his favorite computer. Everyday seems like a never-ending struggle to get along with his grandpa. But when the two joint force to rescue grandma from her former student's scheme, they forget their previous quarrels and stand up for each other. And Oskar enjoys a summer vacation full of adventures like never before.