In this turn-based tactical mystery thriller four young outsiders stumble upon an unsettling truth in an old mine, while searching for their lost friend. In the depths of the mountain, a private biotech company experiments with a mysterious fungal organism.
The further the friends venture down the tunnels, the more they become affected by the fungal spores. Gradually, the spores increase their powers, but also damage their physical and psychological condition. Their rescue mission soon turns into a life-threatening trip into darkness.
Only through clever planning, manipulation and distraction can they escape the company‘s employees and discover the true nature of the organism in the heart of the mountain. Will they be able to free their friend from the influence of the spores and escape to safety?