Eighteen-year-old Joaquin del Toro's future looks bright. With his older brother in the priesthood, he's set to inherit his family's ranch. He's in love with Dulcena - and she's in love with him. But it's 1915, and trouble has been brewing along the US-Mexico border. On one side, the Mexican Revolution is taking hold; on the other, Texas Rangers fight Tejano insurgents, and ordinary citizens are caught in the middle.

When eleven-year-old Violet runs away from home in 1918 and takes the train to New York City to find her older sister who is a suffragist, she falls in with people her parents would call "the wrong sort," and ends up in Nashville, Tennessee, where "Suffs" and "Antis" are gathered, awaiting the crucial vote on the nineteenth amendment.