In this episode, the mansion of the Marquis St. Evremonde goes up in flames as the Revolutionary mob torches the ancestral home of Charles Darnay (secretly the new Marquis).  The old Marquis’s functionary, Gabelle, is, in consequence, about to be arrested.   This will draw Darnay from safety in England to mortal peril in France, as he will decide to journey to Paris–and possible imprisonment and death–to save his friend, Gabelle.