After witnessing a mysterious murder, Icelandic lawyer Kristin finds herself holding the first clues to uncovering the “Tears of the Wolf” – a legendary stash of Nazi diamonds. Joined by her partner Steve and their friend Einar, the trio embarks on a perilous hunt through encoded WWII artifacts, cryptic Enigma machine ciphers, and lost sheets of musical notes. As they rushes from rural Iceland to a museum heist in Finland, and then onward to Germany, the three are pitted against brutal mercenaries — and the mysterious and deadly assassin Thomas, who proves to be a ruthless adversary in his persuit of “The Tears.” Twists and betrayals abound as the adventure leads to a high-speed chase through a bunker system beneath Helsinki, and a final showdown on an island in the Finland Archipelago.