Ep 1. Partners in Crime

The episode "Partners in Crime" is the second episode of the fourth season of the popular sci-fi series Doctor Who (2005). The episode is set in present-day London and follows the Doctor (played by David Tennant) as he investigates a strange occurrence in a weight loss clinic.

The episode begins with the Doctor, who is traveling alone at this point, investigating a series of mysterious disappearances in a London weight loss clinic called Adipose Industries. The Doctor quickly discovers that a mysterious alien race called the Adipose is behind the disappearances. The Adipose are cute, small, round creatures that resemble small marshmallows. They are harmless on their own, but they have a sinister plan to take over the world.

While investigating Adipose Industries, the Doctor meets a woman named Donna Noble (played by Catherine Tate), who is also investigating the clinic. Donna is a brash, loud, and opinionated woman who is determined to get to the bottom of the disappearances. The Doctor and Donna quickly hit it off despite their initial bickering.

As the Doctor and Donna investigate Adipose Industries, they discover that the Adipose are using a weight loss pill to turn the excess body fat of their customers into Adipose offspring. The Adipose are using these offspring to create a new generation of Adipose, to take over the world.

The Doctor and Donna hatch a plan to stop the Adipose from taking over the world. They infiltrate Adipose Industries and steal a device that the Adipose are using to transport the offspring. The Doctor and Donna then use the device to transport the offspring to safety, while also destroying Adipose Industries.

"Partners in Crime" is a fun and lighthearted episode of Doctor Who. The episode is notable for the chemistry between the Doctor and Donna, who make a great team. David Tennant and Catherine Tate have great chemistry on screen, and their snappy banter and comedic timing make this episode a joy to watch.

The episode is also notable for its special effects. The Adipose are a unique and memorable alien race, with their small, marshmallow-like appearance. The special effects used to create the Adipose are well done, and they help make the aliens seem both cute and somewhat creepy at the same time.

Overall, "Partners in Crime" is a fun and entertaining episode of Doctor Who. The chemistry between the Doctor and Donna, combined with the unique and memorable Adipose, makes this an episode worth watching. The episode also sets the stage for the rest of the season, as the Doctor and Donna continue their adventures through time and space.