They discover the gun belonged to Francesca. Debbie talks to the class, and Camilla gleans a spark of information that might prove useful. Gaetano goes to talk to Camilla and she gives him a good talking too.

Marcello does a pretty bad audition at the radio station. But somehow, things take an unexpected direction. Meanwhile, Libero seems very confused.

This is a kind of trailer, not for a movie, but for a book about the Calabrian mafia-like organization called the 'Ndrangheta, and the investigation into its crimes, called Operazione Crimine-Infinito (Operation Infinite Crime). Coming soon: the author reading some extracts from the book.

Manzi isn't getting anywhere with the kids at the reformatory. He talks to the director, and then goes to the Board of Education, too, to complain.

Nora gets Germana on the phone to find out what's going on, since the wedding is just a couple of days away and she and Yazech are missing in action.

The photographer gives Berardi some more details, but there is still the question of the missing gun. Potti and Bibì seem to have made up completely and Camilla and Renzo might not be in total agreement about what to do next.

Libero goes to the radio station to try to find a job for Alberto. Guido goes to the garage to talk to Alberto.

In August of 2014, the European Space Agency Rosetta probe reached the comet 67/P. This mission allowed for the collection of a great deal of data about comets. In fact, in this episode, a comet will be fashioned out of fairly common ingredients in a normal kitchen. That's pretty exciting.

Alberto's friend, Eugenio, is ready to call it quits when it comes to teaching. Alberto is convinced that kids are the future, but even though he made some headway with the kids at the reformatory his first day, there are still huge obstacles.

In the middle of the night, Germana's father explains why he went so far as to sabotage the roofing work.

Torre discovers the criminal record of the photographer's accomplice and she gets questioned again. Camilla is exhausted, and Renzo tells her about the kiss Livietta's friend Giulio gave her.

Guido discovers why Libero is pretending to be depressed. Annuccia is upset about not having a frog, and Rebbi shows up with an invitation for Maria.

This segment talks about the difference between an asteroid and a comet. Important work is being done with the Hera and Dart missions to study how to deviate an asteroid, thus avoiding possible great damage to our beloved planet

Will Alberto Manzi be up to the task of dealing with these rough, incarcerated boys? On his off-hours, Alberto goes to see the parish priest about a missing person.

Marianne has done a great job dressing up the church, and knows what she wants as payment. Nora is on the phone trying to make a deal for the wedding arrangements. Spartacus is trying to discover who the roof saboteur is.