When Dr. Parrish’s nano-bot firefighting “fireflies” go haywire, Jack, Zane, Jo, and Allison must come up with a way to stop them before they destroy most of Eureka. 

Meanwhile the Jack, Allison, Zane, and Grace are having trouble adjusting to being back in the real world and have to talk to the people who were NPC's in the Matrix to help smooth things out.