Mars Probe crisis

From Tardis Wiki, the free Doctor Who reference

The Mars Probe crisis, (PROSE: Who Killed Kennedy [+]Loading...["Who Killed Kennedy (novel)"]) also known as the General Carrington affair, (PROSE: The King of Terror [+]Loading...["The King of Terror (novel)"]) was the event in which the Third Doctor encountered the Alien Ambassadors. (TV: The Ambassadors of Death [+]Loading...["The Ambassadors of Death (TV story)"])