Some time after framing Phillip Eppermint for drug possession,[a] Alex Stenstrøm becomes a vigilante, securing his neighbourhood in Albertslund, Copenhagen.

Alex’s stepfather, John, has made a breakthrough at work after creating a digestion app which earns him a cheque of 150,000 kroner.

On Alex’s way home, a lightning bolt strikes a hedgehog which possesses it with the spirit of Taiko Nakamura, happily reuniting the two.

Alex finds out that Eppermint is being released from his prison in Thailand the following week due to lack of evidence (his corrupt lawyer, Jimmy Wonta Gana destroyed the previous ninja doll which contained the cocaine and killed the child labour factory owner to retrieve a list of the children who witnessed Eppermint murder Quang[a]).

This prompts Alex to convince his mother, Sirena, to vote for Thailand and also to make Nakamura a new ninja doll body.

The family leaves for the ferry the next morning but Stewart tags along anyway as there was one ticket left (he was made aware of this after Sirena called him when she was drunk).

During the search, he meets a man named Jasper who owns the diving centre and is Eppermint’s interpreter who also witnessed Quang’s murder.

Jimmy traps Alex, Nakamura and Jasper in the storage room and puts a gas tank on a boiler to blow up the diving centre.

Sean arrives and saves the three before the diving centre blows up and they see Eppermint and Jimmy driving to the restaurant where Honey Bee lives; they give chase on a scooter.

Honey Bee manages to run away into a shed containing cobras with Alex and Eppermint following whilst Sean and Nakamura deal with Jimmy.

Dagbladet Information stated that the sequel "live(d) up to its predecessor, both in terms of roughness, tension and message"[4] Ekkofilm also praised the film.