Midway through the first episode of Say Nothing, Dolours Price encounters a fiery scene in West Belfast: a mob of Northern Irish citizens chucking petrol bombs at a police barracks. A gawky, bespectacled young man directs the violence. “Wee Gerry has come a long way since debate club,” Dolours’s sister, Marian, notes. “Wee Gerry” is Gerry Adams, a childhood friend of the Prices who now plays a pivotal role in the Provisional Irish Republican Army.