Overview
The Doctor learns that Styre has been experimenting on the Galsec crewmembers to pave the way for a Sontaran invasion of Earth and decides the only way to halt his plans is to challenge him to a duel.
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12 - 1Robot (1) December 28, 1974 -
12 - 2Robot (2) January 04, 1975 -
12 - 3Robot (3) January 11, 1975 -
12 - 4Robot (4) January 18, 1975 -
12 - 5The Ark in Space (1) January 25, 1975 -
12 - 6The Ark in Space (2) February 01, 1975 -
12 - 7The Ark in Space (3) February 08, 1975 -
12 - 8The Ark in Space (4) February 15, 1975 -
12 - 9The Sontaran Experiment (1) February 22, 1975 -
12 - 10The Sontaran Experiment (2) March 01, 1975 -
12 - 11Genesis of the Daleks (1) March 08, 1975 -
12 - 12Genesis of the Daleks (2) March 15, 1975 -
12 - 13Genesis of the Daleks (3) March 22, 1975 -
12 - 14Genesis of the Daleks (4) March 29, 1975 -
12 - 15Genesis of the Daleks (5) April 05, 1975 -
12 - 16Genesis of the Daleks (6) April 12, 1975 -
12 - 17Revenge of the Cybermen (1) April 19, 1975 -
12 - 18Revenge of the Cybermen (2) April 26, 1975 -
12 - 19Revenge of the Cybermen (3) May 03, 1975 -
12 - 20Revenge of the Cybermen (4) May 10, 1975