Voir Miss Scarlet and the Duke, Season 1 - Episode 3

Scotland Yard have their eye on many potentially disruptive gangs and political groups. Eliza is hired by Duke to go undercover and infiltrate one such group. Eliza is delighted, this is progress and a show of faith in her abilities. She is less delighted when she learns who she will be spying on -- a women's suffrage group campaigning for the vote.