Dr Mu is launching a new evil product called the Mu Box, a games console that turns its unsuspecting customers into zombie-like creatures with TVs for heads. His plan is to create a terrifying Tellyhead army to conquer the world. To advertise his creation, Dr Mu has enslaved Buck Fastness and Gelina Norglobb, the two biggest filmstars in the multiverse, shrinking them down inside a special TV set from which they are forced to broadcast his commercial. Rufus sets out to navigate the airwaves, defeat the Tellyheads, rescue Buck and Gelina and tell the world the truth about the Mu Box.