Hay algo en el bosque

After stealing a jewel known as "La Piedra de Mor", the brothers Cosme and Saray Garza meet Koldo Ugartetxe, the gangster who commissioned them to do the job, in some lost cabins. The brothers will try to scam Koldo by giving him a perfect fake of the jewel. It seems that everything is going to be fine, until Koldo and his two henchmen arrive at the cabins and begin to suspect the brothers.

The popular influencer, Markel Allende, arrives at the cabins for a promotion. On a walk he discovers a living plant—a mandrake—that could relaunch his career. What could seem like a success is jeopardized when Markel introduces his "new friend" to his network. Markel runs the risk of being canceled by his audience and his biggest hater finding the perfect excuse to attack him in real life.

A band of geeks led by paranormal fan Sergio Berenbaum discovers that the clue to guide them to their first extraterrestrial contact could be found in some cabins near Mount Amboto. When they arrive they discover that the owners of the cabins are even geekier than themselves, and that Aliens are not the only paranormal thing lurking in the shadows of the forest.

Nerea, an obsessive girl, dreamed of a romantic vacation in some idyllic cabins. However, her dream turns into a nightmare when she discovers that her boyfriend Diego is unfaithful to her. During a heated argument between the two, Diego trips and dies. Nerea, desperate, tries to get rid of the body in the only way she knows to solve things: by searching for tutorials on the internet.

When Koldo discovers that La Piedra de Mor could be on Mount Amboto, he sends his henchmen into the forest to recover the jewel. The gangsters kidnap Aníbal and Barakaldo, two peculiar cabin workers, who found the stone in the forest. What Koldo doesn't know is that these two friends just drank a magical concoction that could ruin the day for him and his henchmen.

Luna, the cabin manager's assistant, leaves Aníbal and Barakaldo in charge of three tenants who are staying for the weekend to celebrate Christmas together. Despite the clumsy duo's desperate attempts to make everything go well, things get out of control when the three friends read a spell book that summons very aggressive and very short monsters.

A dysfunctional family made up of Saioa, a submissive mother, Gorka, the teenage son, and Andoni, the abusive father, reveal their most extreme side when they travel to the cabins of Mount Amboto. Everything gets worse when they are attacked by a car that comes to life and destroys everything in its path. What they don't know is that the car isn't going to be the only horrible thing that happens to the family.

After much effort, Koldo finally manages to steal La Piedra de Mor and the spell book from the huts of Mount Amboto. As he is about to escape, the Stone releases an extremely powerful enchantment on one of the cabins that forces Luna, Zigor, Hannibal and Barakaldo to solve a dangerous riddle while fighting against their deepest fears and to save their own lives.