The Broadcast is a mysterious radio signal that swept the world not long after the Great War. The Broadcast caused the brains of thousands of people to explode; the sole survivors of the Broadcast, Frank Woodruff and Vladimir Farnsworth, each gained a vast new technological insight. Woodruff turned his ability to building the Mobile Trench; Farnsworth created the Monovision. The Broadcast eventually drove Farnsworth mad and instilled in him a desire to spread its "wisdom". To that end, Farnsworth created machines to serve as his army and conquer the world in the name of the Broadcast.