A method and system for targeting antigens unique to a tumor site. The method can include a first phase of monoclonal antibodies that bind to the tumor site. A second phase of monoclonal antibodies can be administered that bind to the first phase. A third phase of monoclonal antibodies can be administered that bind to the second phase. The third phase can include radionuclides to allow the tumor site to be imaged. Once identified, a phase of toxins can be administered, resulting in death of the tumor cells.