Ep 8. Planet of Evil (4)

The Doctor and Sarah Jane Smith find themselves on an unknown planet, where they encounter a rogue scientist named Sorenson. Sorenson has been conducting experiments on an unusual mineral that has the ability to consume and destroy entire planets. As the Doctor and Sarah investigate, they come across a group of alien warriors who have been sent to investigate the same phenomenon.

The Doctor and Sarah team up with the alien warriors and attempt to stop Sorenson from using the dangerous mineral to destroy the planet. However, as they delve deeper into the planet's mysteries, they discover that there is more to the situation than meets the eye.

As tensions rise and danger looms, the Doctor and Sarah must race against time to stop Sorenson before it is too late. Along the way, they will encounter mysterious creatures, treacherous terrain, and unexpected allies, all while trying to unravel the secrets of the planet and the mineral that threatens to destroy it.

With action, adventure, and suspense around every corner, "Planet of Evil" promises to be a thrilling episode of Doctor Who that will leave viewers on the edge of their seats.