It is a story about the Chinese police who intelligently and bravely fight with the cooperation of the factory's Party Committee and the masses, against the spies, who steal the navy's equipment "Hunting No.99".
Egon escapes from the psychiatric ward, where he has been incarcerated since the gang's last coup. Keld and Benny pick him up, and when Egon, as always, is planning the big heist, the Olsen Gang is once again on the move.
When an amorously inclined young man runs across an attractive young woman in need of his help, it's not difficult for him to rush to her aid while imagining himself in her arms. Though he's married, he retains a strong desire to bed any pretty woman in sight. To his shock, he discovers later that the pretty woman he fantasized about is a ghost.
