David Roden, Steve Lockley and Paul Lewis, Robert Shearman and Simon Jowett write the stories presented.

It takes place between "The Sound of Drums" and "Last of the Time Lords" and details Martha's journey around the world during the Master's reign over Earth.

Martha relates stories conveying a message of hope that she and the Doctor can defeat the Master, foreshadowing the events of "Last of the Time Lords".

The Doctor and Martha meet an old man named Waechter, who saves them from an unknown beast and leads them to safety.

After an inspection of the chip, the Doctor comes to the realisation that the population of Agelaos hasn't disappeared; but merely evolved into the creatures from who they were trying to evade in the beginning.

Introducing themselves as John Smith and Dr. Martha Jones, they are told about the Benefactors; a solitary race, supposedly the salvation of mankind.

The Doctor immediately recognises the Benefactors as an alien race called the Cineraria; who steal planets and proceed to wipe out all lifeforms and resources in existence.

After escaping from Grant and his guards, the Doctor sends Martha to run and lead them away from the TARDIS as to give him more time to fix the problem with the Cineraria.

Inside the TARDIS, Martha asks the Doctor to take her to Earth, ten years in the future; so she can see how the world has managed to sort itself out.

This story tells how Martha had always wanted to be a doctor since she was a child, after becoming fascinated with her bones' healing process after she broke her arm.

The tale then goes onto detail an adventure wherein the Doctor and Martha join a French Arctic Expeditionist named Pierre Bruyere in 1890, on his maiden voyage.

She is shaken awake by the Doctor to find the balloon is losing height; and the team begin to throw their luggage out to lighten the load.

Averting disaster, Martha found herself dreaming of her medical exam again; the voice asking for details about her bones.

The Doctor explains that Pierre had been caught in a time loop as a result of his journal; sending him back to redo the expedition again and again, always doomed.

On board the TARDIS, The Doctor remarks that they never did get to the North Pole; and he takes Martha there to be the first human to set foot in the region.

Then covering her tracks as to not interrupt history, the Doctor takes Martha to the North Pole, 200 years in the future; where the region had an interactive museum.

Breed was classed as an Artificial, genetic clones made to perform maintenance checks and to deal with emergencies.

Meanwhile, Martha discovers that the Steering Council want Edison dead because he fell in love with the young woman, Romea.

A fight breaks out between the Artificials and the Colonists as Martha tries to reach the Fabricator, which would provide everything needed to colonise the target world.

Upon hearing a noise, Martha asks if he's told the Amtorians he wasn't going to take the grading to which the Doctor urgently assures her before pushing her into the TARDIS, and setting off.