Merlí. Sapere Aude

Poll starts to study philosophy to be the new Merli. Bruno is still in love with. Pol makes new friends in the faculty. Pol also meets his new professor "Maria Bolaño" who is destined to change his life forever.

Pol and his father receive a gift postmortem from Merli: A book collection. Pol cheers up a friend. In the faculty, Bolaños puts pressure on Pol to read more and write better. Pol's friendship with Rai leads to a discovery.

Bolaño makes an exercise that humiliates Pol. The group of the faculty makes a party in Minerva's' home where things are about to get messy.

There's a protest in the faculty but Bolaños decide to ignore it. Pol and Rai go to class and this will bring some feuds between his others classmates. Bruno is mad with Pol for being distant.

The group of the faculty makes a party in Minerva's house which brings problems between Bruno and Pol. Bolaño has problems with her addiction and Pol tries a move with Rai.

Pol and his dad have a discussion. Rai's family is having an economic crisis. Bolaño keeps spiraling down with her addiction

Bolaño's ex-husband forbids her to see his daughter for her problems with the alcohol. Rai's mother discover a secret from Rai, and Minerva tells Poll her family problems.

A big party in Rai's house brings some gifts to Minerva and Pol. Bolaño asks for professional help but Pol doesn't want her to stop teaching classes.