The Guardian stood before the Time Lord court, a grim expression fixed on his face. He has been falsely accused of murdering the last member of a now extinct species, known as the Sensorites. But The Guardian was innocent. The murder had actually been set up by a foe The Guardian and his friend, The Doctor, had been chasing after for over a thousand years. That foe was a dangerously insane Time Lord, who chose to be called 'The Master'. The Time Lords had gotten word of the crime too late, and The Master had escaped in his TARDIS…
Flashback; the year 200,000, the Sense Sphere
The Guardian was kneeling over a collapsed body, scanning it with his Sonic Screwdriver.
"I'm sorry." He murmured, looking at the results of the scan, and saw that the body, along with the brain it housed, was dead and in the starting phase of rotting. The Guardian suddenly became aware of a shadow creeping up behind him. He turned, and saw someone his dreaded more than anything in the entire universe. The Master.
"Oh my dear Guardian you have been naïve." The Master taunted.
"It was YOU!" The Guardian realized, bounding to his feet. "You murdered the Sensorite!" The Master laughed.
"Not just one Sensorite, you fool!" he taunted with a sneer. "All of them!"
"You foul, sick miscreant!" The Guardian shouted, angry at this news. "I'll kill you!" But as The Guardian lunged at The Master, the evil Time Lord slipped into a nearby filling cabinet, and it dematerialized with a VWORRRRRRRRRRRRRRRRRRRRRRRP! VWORRRRRRRRRRRRRRRRRRRRRRRRRRRRP! VWORRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRP! "ARRRRGH!" The Guardian screamed with rage. "That was his TARDIS!" Fuming, The Guardian went back to his own TARDIS, a green Police Public Call Box, and dematerialized, intending to follow The Master.