The Box

"The Box" is the second episode of the third season of the American science fiction drama television series Fringe. The episode was co-written by Josh Singer and Graham Roland, and directed by Jeffrey Hunt. The third season spent its time alternating between the prime and parallel universes, and "The Box" was set in the former. It followed a mysterious box that when opened, killed whoever heard it. The fringe team of Fauxlivia (a doppelgänger of Olivia Dunham), Peter, and Walter investigate, with unknown consequences to the creation of a doomsday device.