Solo and Illya are asked by Adam Tenza (Chad Everett) to protect his millionaire industrialist father Mark Tenza (Broderick Crawford) from assassination by THRUSH, much to the resentment of the elder Tenza. When Tenza is killed by a bomb, Solo and Illya must find out where J Tenza's other son, James is, to protect him also. But Adam Tenza is actually planning to kill J, in order to hand his father's empire over to THRUSH.