Richard and Robin Mariner are in Long Beach, California, to oversee the arrival of their container ship, Sulu Queen, before joining their friend Nic Greenbaum aboard his fifty-million-dollar motor yacht as he races his daughter Liberty in an Olympic-standard Katapult multihull down the coast to Mexico. But when an ARkStorm, with the potential to cause catastrophic devastation, overwhelms them, Richard is forced into dangerously unprecedented action...