Doctor!!! London needs you!!

London is under attack from all sides!

The Daleks have infiltrated the tube, the Cyber-men have built a factory next to St Paul's Cathedral, there is an unknown space ship parking under water in the River Thyme, and there is a gigantic alien arm appearing from behind Westminster Abby...

As gloom seem to take over the world, the whole city, the whole world shouts for help...

And they need not search anymore, for the defender of the world is here. Over the sky of London flies the Tardis, driven by the Doctor.

For those who are not sure what this is from, it is from the TV series Doctor Who.