The TARDIS is drawn to an alien museum deep below the Utah desert, where a ruthless billionaire keeps prisoner the last of the Doctor's most fearsome enemies.
The Doctor and Rose travel to the year 2012 and land in a museum of extra-terrestrial objects accumulated by the very wealthy Henry van Statten. He's an avid collector - the TARDIS lands on the museum's 53rd floor below ground level - but he's also using alien technology to develop new weapons from which he derives his large income. He's particularly proud of one device he's acquired but has not yet been able to make functional and to the Doctor's horror, it turns out to be a very old and very dangerous enemy from the past.—garykmcd
The Doctor becomes the main exhibit at a billionaire's alien museum in Utah. But there's something else in there with them - the last member of the most vicious, evil species in the galaxy, and if The Doctor can't stop it, the whole world may be destroyed!—Anonymous