Five years later, Edu, Marina, Viky and Rai mysteriously cross paths again at a trendy new venue perched atop Montjuïc hill, where the amusement park once stood. They soon realise that the place is not what it seems. Before long, they end up in an old ride, a long-buried tunnel-of-terror, where a countdown timer appears alongside a threatening message that feels eerily familiar: they have 60 minutes to get out or they will die.