Twin Dilemma

Emily Bartowski - Chuck's twin - wasn't supposed to have anything to do with the Intersect. But when she walks into her brother's room at the wrong time, she gets it too. Then, the CIA and NSA arrive, guns ablaze. They have no idea that she has it, and her brother is determined to keep it that way. Will she be able to protect herself? Will they find out? Eventual Casey/OC