"The Only Light in the Darkness" is the ninteenth episode of the first season of Agents of S.H.I.E.L.D .
A man with powerful abilities has escaped from one of S.H.I.E.L.D.'s facilities. He can leech all the light out of an area and the team needs to find him. Coulsen, who had helped take the man into custody initially, knows where he will be going. The man had an obsession with a chelist and it was revealed that Coulsen and the woman may have had a relationship. Though, Coulsen could not see her again as she believed he was dead (after the events of The Avengers ).