Retired NYPD Detective Joe Leland is visiting the 40-story Klaxon Oil Corporation's high-rise office headquarters in Los Angeles on Christmas Eve, where his daughter Stephanie Leland Gennaro works. While he is waiting for his daughter's Christmas party to end, a Cold War era German terrorist gang led by the brutal Anton "Little Tony" Gruber, a terrorist Joe had met in World War II when he was a fighter pilot. Anton and his gang take over the entire skyscraper, with the intention of exposing the ...