How long had Oliver been in Alpha Complex and why hadn't Barry seen him? It was true that the number of specials were growing everyday but ever since Felicity and Cisco had arrived, he'd tried to keep an eye out for others from his world.

"It's a virus," Barry said, as he was pulled out of the way of a laser beam. "Uploaded to all the robots in the complex. Felicity's working on hacking it, but in the meantime we're trying to keep the damage minimal."

To people, anyway. If the distant fires and sounds of gunfire were any indication there was still plenty of property damage being carried out. Barry followed Oliver's head and split away. The robot seemed to hesitate and then went after Oliver.