When scientists start to go missing in the 20th century, the Doctor is called in by the Brigadier to investigate. His investigations lead him to deduce that they are being kidnapped through time and he sets off in pursuit, unknowingly kidnapping journalist Sarah Jane Smith in the process. Arriving in the middle ages, the Doctor and Sarah find themselves caught up in the machinations of the robber baron Irongron and his man from the stars. The alien, a Sontaran named Linx, is arming him with modern weapons in return for helping him repair his damaged ship, and it's up to the Doctor and Sarah to stop him from ruining the Earth's timeline.
Doctor Who: Invasion of the Dinosaurs
1974
6
Doctor Who: Death to the Daleks
1974
6
Doctor Who: The Monster of Peladon
1974
5
Doctor Who: Planet of the Spiders
1974
7
Doctor Who: Shada
1992
6
Doctor Who: The Masque of Mandragora
1976
6
Doctor Who: The Deadly Assassin
1976
8
Doctor Who: The Face of Evil
1977
8
Doctor Who: The Ultimate Foe
1986
5
Doctor Who: Terror of the Vervoids
1986
6
Doctor Who: Mindwarp
1986
7
Doctor Who: The Mysterious Planet
1986
6
Doctor Who: The Twin Dilemma
1984
4
Doctor Who: Revelation of the Daleks
1985
9
Doctor Who: Timelash
1985
3
Doctor Who: The Two Doctors
1985
7
Doctor Who: The Mark of the Rani
1985
6
Doctor Who: Attack of the Cybermen
1985
7
Doctor Who: Resurrection of the Daleks
1984
7
Doctor Who: The Invasion of Time
1978
6