Sulha tells the story of Leora, who, twenty years after her husband was killed in the Sinai War, is empowered by law to decide whether or not to allow her only son to serve high-risk duty as his father did. As Abraham was so severely tested, so is Leora with her son's fate in her hands. Charged with this burden, Leora leaves her uneasy exile in Toronto and ventures to Sinai and encounters a Bedouin clan, which offers her a glimpse of the other: the mysterious Arab world that so fascinated her as a child, the enemy that her son might face. But are these people really the enemy?