While FBI agent Audrey pursues the investigation into the fake Agent Howard, Nathan and Audrey deal with an outbreak of machines with minds of their own... and a desire to kill.
Torchwood relocates to LA to sneak into PhiCorp's headquarters to find some useful information, unaware that their mission has been compromised. Elsewhere, Oswald and Jilly face a new adversary in Ellis Hartley Monroe, who is using the Miracle Day for her own agenda.