The evil knight Torchesac, who is at the service of the sinister lord of La Mortaille, gets a very powerful magic flute and uses it for evil purposes. Johan and Pirlouit, assisted by the magician Homnibus, travel to the land of the Smurfs, the only manufacturers of this sort of instrument, to get a new one and battle the usurpers.
William Coryn
Johan (voice)
Michel Modo
Pirlouit (voice)
Jacques Dynam
La Mortaille (voice)
Henri Crémieux
Homnibus (voice)
Michel Elias
Le Grand Schtroumf (voice)
Ginette Garcin
Dame Barde (voice)
Henri Labussière
Fisherman (voice)
Georges Atlas
Séneschal (voice)
