10-year-old Vinski feels like an outsider and invisible among his age-mates, and even with his single mother Krista. Vinski meets a mysterious pharmacist who gives him a bottle of magical powder. A powder, that allows you to become invisible for real and walk through walls. It is fantastic to have the powers of a super hero, but soon a group of crooks becomes interested in the secret of invisibility as well.

The town of Hömpstad is once again under threat from criminals and Vinski's help is needed. When the criminals manage to steal the invisibility powder for themselves, Vinski has a real showdown on his hands.