Coastal waters turn out to be some of the ocean's busiest neighborhoods, and this episode of the Our Planet series follows the hunts and partnerships that keep them running. Giant trevallies and mobula rays work the same shoal of anchovies from different angles, each species exploiting the chaos the other creates. In Everglades National Park, bottlenose dolphins herd mullet into tight balls before lunging through them, a hunting technique passed down within specific pods rather than shared across the species. The camera moves between coral shallows, mangrove edges, and open shoreline to show how tightly these habitats depend on each other, with fish nurseries in the mangroves feeding the predators offshore. Narration ties the footage to the pressures now reaching these systems, from warming water to coastal development, without turning the episode into a lecture. The underwater photography, much of it filmed at eye level with the animals, is the main attraction, and the cooperative feeding sequences are the standout scenes.