The vast power of water creates one of the largest wetlands on the planet, the Pantanal, and gives rise to a teeming concentration of animals. Surging across the heart of Brazil, heavy rains herald its arrival as it unleashes an incredible metamorphosis, transforming the land of the jaguar into the underwater world of the anaconda and piranha. Two Brazilian wildlife cinematographers, Lawrence Wahba and Haroldo Palo Jr., capture a years dramatic milestones in the lives of caimans, anacondas, giant river otters and piranhas as they face the challenge of survival in the changing environment as it drowns and dries out.