Synopsis

Jack Spheer, Lena’s former partner, arrives in National City to present a momentous advance in nanotechnology—a breakthrough with the potential to eliminate all disease. Lena asks Kara to accompany her to Jack's conference for moral support. There, Kara spots Snapper among the attendees and is spurred to reactivate her journalistic instincts. She begins questioning Jack about his discovery, an inquiry that escalates into a wider investigation, inadvertently drawing danger to everyone involved.