Owen is effectively no longer a member of Torchwood. Jack as replaced him as the team doctor with Martha Jones and Owen is stripped of any responsibilities. Jack tells him just to go home. He's been dead for three days and has no idea what to do with himself. Tosh spends time with him but he's become cold and resentful. When Torchwood detects a strange and potentially dangerous energy source at the home of Henry Parker, Owen is the best candidate to investigate. Parker is in possession of an alien device that he thinks is keeping him alive. Afterward, Owen takes to chatting to a young woman he meets on the roof who apparently wishes to commit suicide.
—garykmcd