Joe Mayfield's happy, ordinary life comes apart when his wife's HealthScore is slashed and she is denied cancer treatment. Frantic to save her, Joe hacks into the Yak -- the national database the US created after CyberWar I. Joe's discovery makes him the target of Phoenix, one man's plot to skim billions in medical payments at the cost of thousands of lives. Joe goes off the grid, living on cash in out-of-the-way places. Weezy, a brilliant...