The Fringe team attempts to find out what process enables people to become lighter than air and float. Peter and Olivia deal with trust issues in their relationship, while Walter becomes increasingly obsessed with retrieving William Bell's consciousness from beyond the grave.
Did You Know?
The episode title is the chemical symbol for the element Osmium, the densest of the naturally occurring elements. See more
At the start of the episode a man is found dead, floating outside a building, attached to the ground by a rope. It is later determined that he has been given a compound that makes him float. His arms and his legs hang down towards the ground. If he was lighter than air, upon death, his arms and legs would float upwards, as neither gravity or his muscles would be pulling them towards the ground. See more
Dr. Walter Bishop
"They glanced up and saw Icarus float through the sky, and taking him for a god, They stood still in wonder."
References Star Trek
End Title Theme
Written by Michael Giacchino See more