What is it about sports that turns otherwise sane, rational people into raving lunatics? Why does winning compel people to tear down goalposts, and losing, to drown themselves in bad keg beer? In short, why do fans care?

In search of the answers to these questions, Warren St. John seeks out the roving community of RVers who follow the Alabama Crimson Tide from game to game across the South. A movable feast of Weber grills, Igloo coolers, and die-hard superstition, these are characters who arrive on Wednesday for Saturday's game: Freeman and Betty Reese, who skipped their own daughter's wedding because it coincided with a Bama game; Ray Pradat, the Episcopalian minister who watches the games on a television set beside his altar while performing weddings; John Ed (pronounced as three syllables, John Ay-ud), the wheeling and dealing ticket scalper whose access to good seats gives him power on par with the governor; and Paul Finebaum, the Anti-Fan, a wisecracking sports columnist and talk-radio host who makes his living mocking Alabama fans, and who has to live in a gated community for all the threats he receives in response.

In no time at all, St. John himself is drawn into the world of full-immersion fandom: he buys an RV and joins the caravan for a football season, chronicling the world of the extreme fan and learning that in the shadow of the stadium, it can all begin to seem strangely normal.