The past doesn't always stay buried.
When Ace and her unit are called in to investigate a bombing in downtown New Davenport, the strange scene tells them that an Anti from Ace's past has come back. Hellion once ran a fear campaign in New Davenport that nearly broke Ace's first unit, and she escaped capture. Now that Hellion is back, the whole of the EED is on high alert trying to catch her.
To make matters worse, the city has a hotly contested election coming up, and all the hero units are tasked with keeping the candidates safe up to, and after, election day. With Hellion causing chaos, and the HSO threatening action, Ace and her unit are pushed harder than ever to keep the city safe.
And Hellion isn't the only nightmare from the past to cast a shadow over the city. Will Ace win and capture the deranged Anti, or will Hellion get her revenge?
