Sir David Attenborough reveals spectacular scenes of courting and companionship. Some species need to overcome the challenges of a vast environment just to find a member of the opposite sex. Others find themselves pitched against their neighbors in mass mating aggregations. Some must impress with complex displays. Others build extraordinary structures just to prove their worth. One thing, however, connects them all the drive to succeed at all costs....

Cutting-edge spy cameras called Spy Creatures take us deep into the ocean and reveal the surprising and hidden lives of its extraordinary creatures. The Spy Creatures are taking on their most exciting challenge yet, exploring one of the most magical and dynamic environments on Earth the ocean. A brand-new cast of camera-toting Spy Creatures takes us to places no spy camera has ever gone before from the color and beauty of coral reefs to the extremes...