It was an improbable night for a team that had seemingly used up its nine lives over the course of the season, fighting back from multiple two-run deficits.
Cardinals third baseman David Freese was certainly the hero, tying things up in the bottom of the ninth with a two-run triple, only to hit a walk-off solo home run in the 11th.
The 28-year-old has been superb in October, earning NLCS MVP honors when the club knocked the Milwaukee Brewers out of the playoffs, hitting .545 with three home runs and nine RBIs.
For a moment, Cardinals manager Tony La Russa likely had flashbacks of Game 1 of the 1988 World Series, when he watched a hobbling left-handed batter blast a pitch into the right-field stands off closer Dennis Eckersley.
Los Angeles Dodgers MVP Kirk Gibson delivered that knockout blow to La Russa's Oakland Athletics in a series that ultimately ended in five games.
Texas Rangers outfielder Josh Hamilton was the American League's MVP from a year ago, seemingly ended things with a two-run shot into the right-field seats in the top of the 10th.
It was an improbable swing considering he hadn't hit a home run in 65 previous postseason at-bats this year due to a well-publicized left-groin injury.
La Russa will now have a decision to make in possibly starting Chris Carpenter on three-days rest.
One thing is certain—the St. Louis Cardinals will have all the momentum on their side in trying to capture the franchise's 11th World Series.