 The Dreamscape  is the ninth episode of the first season of the American science fiction drama television series Fringe . It center on a Fringe investigation of a Massive Dynamic employee who , after believing himself to be under attack by a swarm of sharp @-@ winged butterflies , jump out of a window . Meanwhile , Olivia ( Anna Torv ) continue her visions of the deceased John Scott ( Mark Valley ) , and discover how he related to a deadly psychoactive drug synthesized by Massive Dynamic .