Film synopsis: Assembling Ciliwung tells the story of Cahyadi, a skilled craftsman dedicated to building bamboo rafts that form the backbone of life along the Ciliwung River. Beyond their physical function, these rafts embody a way of living, connecting the river's inhabitants to its waters. Amidst a narrative often framed by the pressures of modernization, Cahyadi rallies the community to restore their aging rafts, preserving a vital resource and sustaining their shared existence on the river.