From the back of the book:
Flash! In a news conference this afternoon, American Eagle, leader of the Freedom Squad, issued a nationwide appeal for assistance in the Squad's investigation of the wave of terrorist attacks on its members.
Meet the Freedom Squad, as nice a band of superheroes as you'd ever want to meet. They're friendly, brave, and dedicated. They're also dying! Someone has marked the Freedom Squad for death; half of them have fallen already. They need help. Your help! Now they've put out a call for aid in their hour of need. They want tough, experienced heroes who will help them face their unknown adversaries. Do you qualify?
Join the 3 remaining Freedom Squaders as they unravel the myster of VOICE, meet awesome opponents, and prove once again what it takes to be a real hero!
This adventure is intended for veteran CHAMPIONS players. VOICE OF DOOM includes an action-packed adventure scenario, complete descriptions on the members of a valiant (if somewhat overwhelmed) super group, and as evil an organization of killers as you'll find anywhere!