Who Do You Think You Are? Season 3 Episode 1

Martin Sheen, a longtime activist, sets out on a journey to find out if his ancestors shared his greatest passion. His search leads him to Ireland where he investigates his uncle's ties to the Irish Civil War and his devotion to activism. He continues his journey in Spain, where he uncovers another relative who also fought for social justice and was wrongfully imprisoned during Franco's fascist regime. As he continues to trace his Spanish roots back to the 1700s, he unearths an unexpected family secret.