LIE: 'I check the Range Rover dash. The keys are in there. The sirens are closing in. There's a police helicopter coming over the hospital.' KILL: 'I have to decide. Decide right now. I can keep out of trouble. Not get involved. Just run away through the park and go home and pretend none of this has happened. Or I can help Becca.' WALK AWAY: 'I stare into her eyes. Those deep blue eyes. Just for a split second. I tell her, "get in the car".' Joe and Becca uncover a deadly secret. A lethal bioweapon is about to be unleashed. Millions will suffer a terrible death. Now they are being hunted down. And their problems have only just begun ..