The Hand of Fear

S14 E8: Eldrad reconfigures his body to its final, male form. Furious with finding his world dead, he states that he will return to Earth to rule it. The Doctor and Sarah Jane trip up Eldrad with the Doctor's scarf and he falls into a chasm and dies. Back in the TARDIS, the Doctor receives a telepathic message from the Gallifrey and sadly, leaves Sarah Jane on Earth after a hasty, unexpected goodbye.