In New York City, in the 1840s, people need a diversion from the "railroad pace" at which they work and live. They find it in a game of questionable origins. On June 19th, 1846, at the Elysian Fields in Hoboken, New Jersey, a team of well-dressed gentlemen, the Knickerbockers, play the first game of baseball. By 1856, the game is already being called "the national pastime," or simply, "Our Game." But the nation is about to be torn apart. And, in the midst of the Civil War, there is one thing that Americans North and South have in common: baseball.

It is a decade of revolution. In China, in Central America. At Kitty Hawk. In Henry Ford's factory. And on America's baseball fields. In 1894, a sportswriter named Byron Bancroft "Ban" Johnson takes over a struggling minor league - the Western League - and turns it into a financial success. In 1900, he changes its name to the American League and begins talking about challenging the big city monopoly held by the National League. The revolution takes only three years. In 1903, the first World Series is played between the American League Boston Pilgrims and the National League Pittsburgh Pirates.

Examine the century's second decade, which was dominated by the Black Sox scandal. George Herman “Babe” Ruth makes his first major league appearance (as a member of the Boston Red Sox) and a wave of immigration helps fill the stands with new fans, eager to “become American” by learning America's game.

Viewers are taken through the 1950s when New York City had three successful baseball teams and dominated the World Series. By the end of the decade, the Giants and Dodgers had left New York, a signal that the old game was changed forever.

The final episode looks at baseball from the 1970s to the present, including the establishment of the free agent system, the rise in player salaries, the continued expansion, the dilution of talent, the ongoing battles between labor and management and the scandals.