A costume drama / satire about financial skull-duggery, and confidence tricksters in both the upper and lower classes in Victorian London. A working class man impersonates a lord who is supposedly very rich and a financial wizard. As such he is invited to all the best peoples' parties.
The Doctor discovers his old enemy the Master is intent on preventing Earth's industrial revolution in 19th century England. But the Rani, a second rogue Time Lord, has plans of her own...