The American Southwest has been decimated by drought, Nevada and Arizona skirmish over dwindling shares of the Colorado River, while California watches. When rumors of a game-changing water source surface in Phoenix, Las Vegas water knife Angel Velasquez is sent to investigate. With a wallet full of identities and a tricked-out Tesla, Angel arrows south, hunting for answers that seem to evaporate as the heat index soars and the landscape becomes more and more oppressive. There, Angel encounters Lucy Monroe, a hardened journalist who knows far more about Phoenix's water secrets than she admits, and Maria Villarosa, a young Texas migrant who dreams of escaping north to those places where water still falls from the sky. As bodies begin to pile up and bullets start flying, the three find themselves pawns in a game far bigger, more corrupt, and dirtier than any of them could have imagined. With Phoenix teetering on the verge of collapse and time running out, their only hope for survival rests in one another's hands. But when water is more valuable than gold, alliances shift like sand, and the only truth in the desert is that someone will have to bleed if anyone hopes to drink.