Ep 3. Planet of Giants: Crisis

The Classic Doctor Who season 2 episode 3, titled "Planet of Giants: Crisis," is an exciting adventure that follows the Doctor and his companions, Ian, Barbara, and Susan, as they land on Earth but find themselves shrunken down to the size of insects. The group must navigate their way through a dangerous and unfamiliar world to find a way to return to their normal size and prevent a major catastrophe from occurring.

As the episode begins, the group lands in what they believe to be present-day London but quickly realizes that something is wrong when they encounter oversized insects and other objects that are much larger than they should be. Confused and disoriented, they soon discover that they have been shrunk down to a tiny size and are now in great danger.

With no way to contact the TARDIS or anyone else for help, the Doctor and his companions are forced to use their wits and skills to survive in this strange and dangerous new world. They quickly realize that they must find a way to reverse the effects of their shrinking and return to their normal size if they are to have any chance of stopping a major disaster that could potentially destroy all life on Earth.

The group soon learns that a group of scientists, led by a man named Forester, has created a powerful insecticide called DN6 that is capable of wiping out entire populations of insects. However, in their haste to create this new chemical, they have overlooked the fact that it could also have devastating effects on other forms of life, including humans.

As the Doctor and his companions try to find a way to stop the use of DN6 before it's too late, they are faced with countless challenges and dangers, including oversized ants and spiders, a flooded sink that threatens to drown them, and even a deadly flytrap that nearly kills them all.

Despite the odds against them, the Doctor and his companions refuse to give up and are determined to find a way to save the planet. With their quick thinking and resourcefulness, they are able to devise a plan to stop the use of DN6 and protect the fragile ecosystem of Earth.

Ultimately, the group is successful in their mission, and they are able to return to their normal size and continue their travels through time and space. "Planet of Giants: Crisis" is a thrilling and action-packed episode that will keep viewers on the edge of their seats as they follow the Doctor and his companions on this perilous adventure.