FBI agent Sera Warren has been working undercover to track a domestic terrorist group to its origins. When her cover is blown, her priority shifts from closing her case to just making it through the day alive. She ends up in the middle of a bank heist, pointing a gun at her ex-girlfriend, Torrence "Tor" Jewel. She sees a flicker of recognition in Tor's eyes as she pulls her gun and yells, "On the floor!"

Before Tor can fully register that "the one who got away" is standing in front of her, she's pushed facedown onto the floor. Sera might as well shoot her now because as soon as she gets up, Tor's going to kill her. Or kiss her. She's still undecided.

First, they have to survive their reunion, then they can worry about happily ever after.