Friends Sveppi and Villi discover that an old nemesis has built a doomsday machine that can trigger earthquakes and volcanic eruptions. With the help of their friend Gói, they manage to sneak into his evil lair. But this is only half the battle - to save the country they'll have to destroy the machine.
| Actor | Role |
|---|---|
 Sverrir Þór SverrissonSveppi | Sveppi |
 Guðjón Davíð KarlssonGói | Gói |
 Vilhelm Anton JónssonVilli | Villi |
| GGunnar ÁrnasonBig Bad | Big Bad |
 Hilmir Snær GuðnasonEyólfur | Eyólfur |
| VViktor Már BjarnasonHenchman | Henchman |
 Anna Svava KnútsdóttirAnna | Anna |
 Jóhannes Haukur JóhannessonPresiden of Iceland | Presiden of Iceland |
 Saga GarðarsdóttirKarate master | Karate master |
| JJóhannes ÁsbjörnssonSummer cop | Summer cop |
| MMargrét Eir HjartardóttirSveppi's mom | Sveppi's mom |
 Thorunn Erna ClausenFarmer | Farmer |
| GGunnlaugur HelgasonTruck driver | Truck driver |
| EErna ArnardottirBank secretary | Bank secretary |
| GGunnar SigurðarsonHenchman at home | Henchman at home |
 Arnór BjörnssonTeenager | Teenager |
| KKolbeinn SveinssonTeenager 2 | Teenager 2 |
 Óli Gunnar GunnarssonTeenager 3 | Teenager 3 |
| VViktor Pétur FinnssonTeenager 4 | Teenager 4 |