Watch Onyx Equinox Episode 1 HD Full Free on SolarMovie. Watch Onyx Equinox tv series online free. A young Aztec boy is saved from death by the gods and chosen to act as 'humanity's champion,' forced...A young Aztec boy is saved from death by the gods and chosen to act as 'humanity's champion,' forced to discard his apathy toward his fellow man and prove humanity's potential in a fight that spans across fantastical-yet-authentic Mesoamerican cultures.