At the press conference, attended by industry representatives from across Britain, Archer unveils AirZone's optimistic plan to reduce pollution, but her sermon is cut short by Arnie (who has been sneaked in by the now-convinced Ellie) brandishing a gun, who demands Archer reveal the truth about why people living near the plants have been dying and disappearing. She refuses, but Stanwick arrives with Rachel in hand (having recovered her with the unexpected help of MacNamara). Rachel and many other Britons have been subject to genetic experiments, forcing them to grow gill-like appendages to their necks. The AirZone Solution is not to reduce pollution, but to instead increase it and instead create a new race of humans able to breathe the polluted air. With AirZone's scheme revealed to the public, it collapses. MacNamara actually works for MI5 and apparently had been working against Archer from inside AirZone (and appears to have been behind Rachel's earlier abduction), and leaves saying the AirZone was a good idea but a bad image. Out of nowhere, Threthewey appears and says that Al Dunbar would have been proud of the work done by Arnie, Ellie, and Stanwick. The origin of the Dunbar apparition and why it appeared to Arnie and Stanwick is left unexplained.
