In a world where over fishing, coral bleaching and walls have stripped the world's oceans of 99% of marine life, one lone fish makes it his sole mission to swim through the spike ball and wall infested waters to attempt to find another fish to breed with to keep his population going.

In a world where over fishing, coral bleaching and walls have stripped the world's oceans of 99% of marine life, one lone fish makes it his sole mission to swim through the spike ball and wall infested waters to attempt to find another fish to breed with to keep his population going.