As a suicide incident occurs at New York's iconic Grand Central station, Agent Dunham simultaneously witnesses the event while asleep and dreaming in Boston. Rattled by the extraordinary and coincidental circumstances, Olivia, Peter, and Walter investigate further, but keep coming up empty-handed. As these violent occurrences continue and worsen, Olivia is sent into an unthinkable direction and shocking details emerge about the ZFT manuscript, the highly experimental drug Cortexiphan, and Olivia's childhood.