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 63rd
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 a very
old and very dangerous enemy from the past.
