Follow two scientists as they spend a night in the Everglades collecting water samples, photographing wildlife, and sloshing through marshes in an attempt to understand this complex ecosystem. Part of a long-term effort to return the Everglades to a natural state after a century of development, the scientists seek to ascertain what the river of grass was like prior to human settlement. Along the way, the scientists deal with razor-sharp sawgrass, alligators and turtles, and are even surprised by the sudden presence of what is known in the Everglades as a "frog gigger"-one who hunts and collects frogs for food!