During a high school science fair Johnny is plagued by visions of the children catching some kind of illness and dying. Purdy and Walt eventually get the reluctant state health officer to investigate and with Johnny's help figure out that one of the children was infected with a SARS-like virus and spread it with a bubble-blowing experiment in the science fair. As the children (including Johnny Bannerman) start collapsing, Johnny decides to inject himself with a blood sample containing the virus - he sees a vision of the future when the CDC finally figure out the cure and manages to communicate it to the medical staff.