While witnessing unprecedented increases in autism among young children, an internationally revered medical doctor finds his retirement troublesome. Dr. Jeremiah Trent is convinced that a mercury-based vaccine preservative, similar to one he helped create while a young university chemist, could be the catalyst behind a rampantly spreading malady that had no recorded history before 1945. <br><br>Trent moves forward quickly, forming an unlikely alliance with irascible former U.S....