Synopsis by Hal Erickson
The six-part Doctor Who adventure "The Time Monster" begins as Professor Thascales of the Newton Institute unveils his newest invention, the Transmission of Matter Through Instellar Time machine, or TOMTITT for short. Unfortunately, the Professor's device is disrupting the natural flow of time, necessitating the arrival of the Doctor (Jon Pertwee) and Jo (Katy Manning). Though he doesn't know it yet, the Doctor is about to go head to head with his perennial nemesis, The Master (Roger Delgado). Written by Robert Sloman, Doctor Who: The Time Monster, Episode 1 originally aired on May 20, 1972.