An invisible man gets into Star Labs, and releases a neurotoxin with Tina inside the lab. Then he starts killing scientists who worked on the project. Flash must find the invisible man and save his friend.

Cast: John Wesley Shipp, Amanda Pays, Alex Désert, Vito D'Ambrosio, Biff Manard, George Dickerson, Mike Genovese, Sergio Gonzalez, Deborah May, Christopher Neame, François Giroday, Sarah Daly, Robert Shayne, James Tartan