High Quality Content by WIKIPEDIA articles! "Olivia. In the Lab. With the Revolver." is the 17th episode of the second season of the American science fiction drama television series Fringe, and the 37th episode overall. In terms of production, it is the season’s sixteenth episode, "Unearthed" being held over from the first season. In the episode, Olivia investigates a man with a possible connection to her who has the lethal ability to spread cancer by touch.