Are you cheating on your wife? Have you moved a body? Secrets are dangerous. Sometimes life-threatening! Several of the characters soon find this out, in the story about the courier who disappeared.

In Sweden, young US soldier, Willy, goes a.w.o.l and teams up with other deserters in Stockholm. There, he meets leftist radical beauty, Inga, who tries to seduce him into joining her extremist group's cause.

Åsa-Nisse invents a new super fuel that makes boats look like rockets.

Sjökvist needs a woman to tidy up his general store and Åsa-Nisse helps him out to put an ad in the local newspaper.

Music film with the band Sven-Ingvars. The band plays travelling musicians from 19th century Värmland, who are commissioned to save an earl's daughter, who has been kidnapped by an evil and music-hating officer. The band travels to USA and the dangerous town of Desperado City. Here they meet Indians and bandits, look for gold and take part in a bar brawl.

Music film with the band Sven-Ingvars. The band plays travelling musicians from 19th century Värmland, who are commissioned to save an earl's daughter, who has been kidnapped by an evil and music-hating officer. The band travels to USA and the dangerous town of Desperado City. Here they meet Indians and bandits, look for gold and take part in a bar brawl.

Åsa-Nisse and Klabbarparn teach Sjökvisten how to be a secret agent.

The most popular bands in Sweden are travelling from Stockholm to Gothenburg for a pop contest. The problem is that no one has the money needed to get to Gothenburg, and no one wants the other bands to reach the destination. Some of the most popular Swedish bands of the 1960s figures in the movie: Lee Kings, Spotnicks, Ola & The Janglers, Jerry Williams & The Violents, Shanes, Sten & Stanley and Hounds.