Off the shores, away from the glittering skyline of the city, Singapore maintains one of the world’s busiest shipping lanes, yet its waters hide a little-known secret : a rich bio-habitat harbouring diverse marine life, including even species long thought to be extinct. This documentary follows the visionary partnership of Singapore planners, scientists and nature-lovers who are coming together to create Singapore’s first-ever Marine Park in the waters around one of the nation’s remaining coral reefs: Sisters’ Island.