If you’ve watched the movie V for Vendetta, then you’ll know why these masks are of significance. Here’s the plot:

The series is set in a near-future Britain after a limited nuclear war, which has left much of the world destroyed. In this future, an extreme fascist party called Norsefire has arisen and is now the ruling power. “V”, an anarchist revolutionary dressed in a Guy Fawkes mask, begins an elaborate, violent, and theatrical campaign to bring down the government