In the Dark (S01E10)

Title: In the Dark Plot: In the Upworld, Max employs an innovative method to submerge Jay underwater, aiming to sharpen his sensory perception. Concurrently, in the Downworld, Finger is on a relentless quest to find Jay. He guides his team to a hidden underground cave where the young scientist Fractal is conducting experiments on a mysterious crystal. This crystal possesses strange abilities, transforming anyone who comes into contact with it into a zombie-like creature.