The film was also Guy Rolfe's final appearance as Toulon, save for flashback footage in The Legacy.

The film begins in 1944, Switzerland, taking place after the events of Puppet Master III: Toulon's Revenge.

Toulon and his little friends are still on the run, and decide to hide in the Kolewige, an inn 4 mi (6.4 km) from the Swiss border.

Cut to Paris, where a young André Toulon is putting on a puppet show of Dante's Divine Comedy.

Watching from the crowd is Elsa, who has left her cruel, cold-hearted, abusive ambassador father and harmless mother to view the wonders of the country and has decided to see the play.

Afzel then starts to make the puppets draw a barrier that's supposed to protect him if the servants come back.

The next day, back at the theater, Valentin storms in as the barrier written on paper falls off the wall.

Once Toulon returns from the woods, he sees what has happened and acts quickly by putting their souls inside his puppets.

Six-Shooter, however, kills one of the mummies by shooting the chandelier chains, causing it to crush the servant.

Feeling that he had won the battle, André and his puppets go to a train station to leave Paris for Calais, France before things start to get bad, not realizing they already had.

André displays the scroll where the secret is written and asks, "How do you know I haven't copied it?"