In “Luca 2,” beloved sea monsters Luca and Alberto return for a new adventure on the Italian Riviera. After a summer filled with excitement and friendship, Luca is eager to explore beyond the quaint town of Portorosso and dive deeper into the human world. Alberto, still feeling the thrill of his last getaway, convinces Luca to join him on a trip to a hidden island rumored to be home to ancient sea monster legends.

As they set off, they meet a new character, a spirited girl named Marina, who is searching for her missing brother. Intrigued by his story, the trio decide to help Marina, leading them on a quest filled with mysterious caves, enchanting underwater landscapes, and encounters with other sea creatures.

Their adventure takes a turn when they discover that Marina’s brother has been captured by a group of humans who don’t understand sea monsters. Luca, Alberto, and Marina must work together to rescue him. Along the way, they learn about bravery, acceptance, and the importance of embracing who they are.

In the thrilling climax, the friends take on the humans in a daring rescue, showcasing their unique skills and the power of teamwork. Ultimately, they succeed, and the experience strengthens their bond. The film ends with Luca and Alberto returning to Portorosso, forever changed by their adventure and with a new understanding of both worlds. They look forward to more adventures together, celebrating their friendship and the magic of discovery.