縱橫於1960到1970年代的黃道十二宮殺手，歷史上最有名的未知連環殺手之一，所犯下的一系列攻擊案還有寄出的一系列帶有古老符號的詭異恐嚇信令全美國如履薄冰。這幾封密函在50多年來讓各路解密專家都懊惱許久。這一系列的有限真實影集《追蹤黃道十二宮殺手》讓這一連串令人不寒而慄的謎團再度重啟調查。
這一系列被稱為Z340的密碼和納粹的恩尼格瑪密碼被稱為史上最難破解的密碼，而聯邦調查局、中情局以及成千上萬的民眾都試圖解密但無人成功。因為混雜著許多遠古符號和現代符號，讓許多人認為這是一組無法破解的密碼，直到現在。
領導這次調查的是一群退休的洛杉磯警局重案組警探，全國數一數二知名的重案組警探沙爾拉保貝拉；前聯邦調查局特遣部隊隊員、美國海軍陸戰隊特種部隊退役的懸案警探肯恩緬因斯；和南加州大學資訊工程學系教授、解碼員凱文奈特。三位分別運用個人獨特的專長和全世界最強的電腦之一來進行解碼工程。不管是實戰或是在實驗室內，這群偉大的人們將試圖將這名全美國最惡名昭彰的惡棍繩之以法。
Throughout the early 1960s and 1970s, the Zodiac Killer, one of history’s most famous unidentified serial murderers, terrorized America in a spree of heinous attacks, sending taunting letters and codes filled with bizarre and ancient symbols. This code has baffled some of the greatest minds in cryptology for over 50 years. HISTORY’s new nonfiction limited series, “The Hunt For The Zodiac Killer” opens up a new investigation into the mystery of this twisted serial assassin.
The Z340 code ranks with the Nazi’s Enigma Code as one of the most difficult in history to break, and the FBI, CIA and thousands of citizens have tried and no one has been able to crack it. Its tangled mix up of ancient and modern symbology has left many to consider it unbreakable, until now.
The team of experts leading the investigation are retired LAPD homicide detective, Sal LaBarbera, who is one of the most decorated homicide detectives in the country, former FBI task force member, Marine Corps vet, and cold case detective Ken Mains, and University of Southern California Professor of Computer Science and code-breaker Kevin Knight. Together they utilize their unique expertise and one of the most powerful computers on earth to work on solving the code. On the ground and in the lab, these brilliant minds will attempt to finally bring one of America’s most notorious monsters to justice.
