Mia, a 12-year-old girl, is about to celebrate her 13th birthday. However, her special day is disrupted by a series of strange events. An earthquake, a mysterious gate appearing in her neighborhood.
As Mia and her siblings, Marc and Mariella, try to make sense of the chaos, they discover that the gate is a portal to another world, filled with monsters and unknown dangers. Despite the risks, Mia is drawn to the gate and convinces her siblings to explore it with her. But with this curiosity comes great risks, Mia and her siblings must explore the gates and confront their own limitations in order to survive.