Two helicopters disrupt the peace of Dr Gabe Singleton's remote Wyoming ranch. From one of them strides the President of the United States with startling news - and a stunning request which will turn Gabe's quiet life upside down. President Stoddard's personal physician has suddenly and mysteriously disappeared, and he needs Gabe to take the man's place. Reluctantly, Gabe agrees - but soon he discovers that critical details concerning the President's health have been kept from him. Suspecting that the President's worsening condition may not be due to natural causes, Gabe sets out to uncover who is behind his mysterious illness. But the more questions he asks, the more Gabe seems to be putting himself in danger.