Ep 9. Cold Blood

The Doctor and his companions, Amy and Rory, find themselves in a prehistoric world after being transported there by the TARDIS. They quickly find themselves in the middle of a battle between the Silurians, an ancient reptilian race, and humans who have taken over their underground city.

As the Doctor tries to negotiate a peace between the two sides, tensions rise and a full-scale war seems inevitable. The humans, led by their commander Nasreen Chaudhry, believe the Silurians are a threat to their survival and must be eradicated, while the Silurians see the humans as invaders who have stolen their home.

As the conflict escalates, the Doctor is forced to make a difficult decision that could have major consequences for both species. Meanwhile, Rory and Nasreen's son Tony find themselves trapped deep within the Silurian city, facing a dangerous threat that could mean the end for both of them.

With time running out and tensions at an all-time high, the Doctor must find a way to bring peace to the warring factions before it's too late. But can he succeed where others have failed, or is this conflict fated to end in tragedy?

Cold Blood is an intense and emotional episode that explores the themes of war, peace, and the consequences of our actions. It's a thrilling entry in the Doctor Who canon and offers some of the best moments of the show's fifth season. Fans of the series won't want to miss it.