It is 2020 and the world is facing a massive crisis in the water supply: shortages and contamination have made drinking water scarce. Hayden Shivers is a lowly filter and drains engineer employed by Drixa, a megacorporation with a monopoly on water. When he stumbles upon a method for synthesizing fake water, using a rare ingredient that grows on an island off the coast of Malta, Hayden is promised a big promotion if he signs a Letter of Agreement granting Drixa the patent to his invention.
Hayden's determination to win recognition for his innovation seesaws with his concern that the product not launch until it is confirmed to be safe. He manages to jeopardize both goals in an encounter with his idol, Drixa's laconic director Lionel Dawson, and the situation grows more dire as he solicits advice from a fanatically loyal Human Resources manager, a cynical divorce lawyer, a reporter determined to expose the corruption at Drixa, and his brilliant African mail-order "maid." Told in an off-kilter style that reverberates with the sublime and the paradoxical, H2O traces and retraces the overlapping family and corporate intrigues that threaten to turn a life-saving invention into an instrument of disaster.