Fifth Race

The Fifth Race is the fourth Episode of Star Trek: Voyager.

Plot
While leading a research team on an alien planet studying alien inscriptions on the walls Captain Tyson peers into a strange viewer that grabs him and unleashed tons of Ancient knowledge into his mind. Forcing him to return to Voyager where he's slowly having his mind reconfigured can Dr. Horton find away to reverse it or will the crew lose their Captain forever.