A routine delivery mission spirals into a desperate fight for survival when Alan Stewart finds himself standing over a corpse on a desolate Icelandic road. Stewart and his girlfriend, Erin, must navigate the unforgiving terrain of Iceland while evading unknown pursuers who are determined to intercept the package he carries. The narrative follows a linear, high-stakes progression, forcing the protagonist to rely on his wits and physical endurance to overcome both the harsh environment and the lethal threats closing in on him. As the mystery of the package unfolds, the tension escalates toward a final confrontation that tests the limits of Stewart's resolve.

Desmond Bagley is widely regarded as a master of the classic thriller, and this work exemplifies his ability to blend geographical realism with relentless suspense. The novel is frequently cited for its effective use of the Icelandic setting, which serves as more than just a backdrop but as a genuine obstacle for the characters. Readers often highlight the author's technical precision in describing the mechanics of the chase and the survival elements of the plot. The narrative is noted for its lean, efficient prose that avoids unnecessary ornamentation in favor of driving the story forward. This book remains a staple for those who appreciate mid-century thrillers that emphasize plot mechanics and environmental tension over psychological introspection.