Every now and again, the BBC managed to draft in some heavyweights onto it's flagship "Dr. Who" series and this one is amongst the best. We get a clue of what's to come from the explosive start before the "Doctor" (Tom Baker) and "Romana" (Lalla Ward), who looks like she's just escaped from "St. Trinian's", arrive for a sojourn in Paris. Sitting in a café they experience some sort of time loop, thver mais...