The Dangers of Exceeding the Blinovitch Limitation Effect

Made restless by his long exile on earth and frustrated by his failure years before against the megalomaniac Professor Stahlman, the Doctor determines to change the history of a parallel earth. Not realizing that his first journey into that reality did not provide him with enough information, the Doctor has many tragic surprises awaiting him. His reckless venture endangers not only himself and Jo, but also the desperate citizens of this alternative earth. Set after The Time Monster. Nine Episodes