Three months after his sister and her two friends are kidnapped, Javi and his buddies, Quino and Álvaro, set out to find them, following clues that lead to a secret buried underneath the scene of the crime: Paraíso nightclub.

As Álvaro remains in critical condition, Javi has a terrifying encounter at the hospital. Suspecting foul play, Javi's friend Bea encourages Mario and Costa to continue their search, while the rest of the town mourns lives lost.

The mortician urges the gang to find a portal to the next world before the undead deliver them to a horrific alternate realm.

When complications arise from a risky plan, chaos and fear drive a wedge between the boys. Meanwhile, Bea helps Olivia make sense of her grandmother's mysterious belongings.

After chasing down a ghost for information about the girls' location, Javi attempts to lead his father in the right direction.

While the undead use a scapegoat to throw everyone off their scent, both Costa and the gang begin to close in on the truth.