Harriet Jones was an unassuming career backbencher serving the constituency of Flydale North. She was at 10 Downing Street when an alien spacecraft crashed in the River Thames in 2006. She was there to discuss plans for the Flydale Infirmary, where her mother was staying, in her "tiny little" constituency. She soon discovered that the Cabinet of the United Kingdom had been infiltrated; the Acting Prime Minister of the United Kingdom, Joseph Green, was actually one of the Slitheen family in disguise.