When televangelist Peter Boothe decides to build a megachurch on the banks of the Pedernales River, he thinks his biggest problem will be a few unhappy neighbors. However, when backhoe operator Hollis Farley unearths a rare fossil on the construction site - a discovery that could lead to plenty of embarrassing Darwinian publicity - the cover-up begins. Soon, Farley is dead, shot in the back with an arrow, and Game Warden John Marlin is asked to help...