His hair parted by a bullet, Joe Copp wakes up in a hospital with a nasty headache and a deeply troubling case of amnesia. When he's released and sets out to piece together his fragmented memory, Copp finds that he's been framed for the murder of Martha Kaufman, killed by his own gun.

When Copp finds a painting in his apartment with a label identifying the work from the Kaufman Gallery in idyllic Mammoth California, he heads North to the High Sierras to find the missing links. What Copp finds is a shock to his senses—a recently dated marriage license pronouncing him Martha's new husband! Copp's presence in Mammoth also has other consequences as a tempest descends upon the town.

Don Pendleton's Copp In Shock marks the sizzling grand-finale to the Copp series.