In this episode, Mr. Critichelli takes Calimero and friends to an old castle, and after hearing it is haunted, they want to investigate and try to find ghosts.
In this episode, Calimero and friends search underground for aliens.
In this episode, Calimero and friends search for treasure in the ruins under a construction site.
In this episode, Calimero and Valeriano participate in an athletic competition. Pierrot boasts that he could do better than them, so Calimero and Valeriano sign him up in secret, much to his displeasure.
The group is attacked by pirates on the "Cruise" Piero arranged by selling 2 tickets to a real Cruise for 4.