Since the beginning of time, they have existed among the deep sea predators and the waves of the perilous ocean. A marine biologist Dr Jade Bowers stumbled across a mysterious recording of underwater sounds; she launched a scientific investigation only to uncover the existence of a creature that was thought to be a myth. In search of conclusive proof, she and her research team find partly digested remains of an animal. The remains were strange and no one could identify them. The body parts were autopsied; only to solve a puzzle. Dr Jade Bowers races against time and her heart to unveil an ancient secret before it is too late. The cursed family of Basak Dutta, they carry the genes of the ancient Queen. Rose wants to protect her clan and she shall do anything for the survival of her pod. They have survived the trials and tests of evolution...they now stand to face the trials of humans...will the pod survive its annual migration under a new queen...the half-breeds face the same trials as the primitive Mers and the Nereids that live in the blue depths.