11-year-old gaming enthusiast Hedvig finds her life turned upside down when she is forced to replace her father as the town’s superhero much earlier than expected. But Hedvig is no superhero, and the challenges are far greater than her coaching father anticipated.

Cattle Hill farm, in crisis, relies on Albert the Pig's revolutionary Nano-seed to help the crops grow again. During a high-tech train journey, the seed is stolen. Detective Agatha Christensen, Klara and Gaute race to unmask the thief and save Cattle Hills' future.