It's 1920. Jimmy Mahon (Brian Gleeson) is working for Michael Collins' (Sebastian Thommen) 'squad'; his older brother Patrick is an RIC officer in the British Army. Banker Harry Butler (Michael Ford-FitzGerald) is funding rebels and Unionists alike through his Ponzi scheme; his wife Constance is a doyenne of the separatist cause courting the American President's envoy, Senator Shea. In British Intelligence HQ, Ursula Sweeney is a cryptologist while her estranged sister Agnes works in the Sinn Fein midnight courts. Spinning events to devastating effect is Sinn Fein propagandist Eithne Drury. Dublin Castle is in a permanent state of lockdown and the rural communities are caught in the crossfire of the Black and Tans and the Flying Columns, brutalised by both sides. It is a time of high tension, fear and anxiety, rife with double-agents and unreliable narrators. It's a world of contrast too; the rooftops, cellars and rat-runs; the warm and opulent receptions of the Butler's household; the mean Dublin tenements where children are left to fend for themselves. Resistance explores how the events of the Irish War of Independence, culminating in Bloody Sunday, changed peoples' lives, their sense of themselves, their families and their society.