Star Trek: Voyager (1995)

S1E12 Cathexis

Title: Cathexis Plot: Stardate: 48734.2. Following a shuttle mishap that leaves Chakotay and Tuvok wounded, an ethereal entity infiltrates the USS Voyager. This mysterious being begins to disturb the crew's mental states and systematically manipulates the ship’s systems, creating chaos among the crew as they struggle to regain control.