10 Doctor Who Episodes Where Evil Won
6. Cold Blood
Evil may be a strong word for it, but the darkest impulses of both humans and lizards ultimately win out in Cold Blood. The scared and vengeful Ambrose tortures Alaya to death with a taser, desperate to find a cure for her father's condition. This murder effectively scuppers any hope that the Doctor has to finally negotiating peace between the humans and Silurians.
Alaya's sister Restac swears revenge on Ambrose and her fellow humans and the peace talks descend into chaos. Restac swears war against the humans on the surface, and the Doctor is forced to hastily send all of the SIlurians back into hibernation. And to top it all off, Restac guns down Rory, leaving him to be erased by the crack in time.
At the end of Cold Blood, paranoia and xenophobia have won the day, destroying any chance of future peace for humans and Silurians for at least another century. Or so we thought, as the Silurians and Sea Devils are about to resurface in 2025.
Could The War Between the Land and the Sea prove to be fourth time lucky for peace between the apes and the reptiles?