John Carter is a war-weary, former military captain who's inexplicably transported to the mysterious and exotic planet of Barsoom (Mars) and reluctantly becomes embroiled in an epic conflict. It's a world on the brink of collapse, and Carter rediscovers his humanity when he realizes the survival of Barsoom and its people rests in his hands.

While John Carter looks terrific and delivers its share of pulpy thrills, it also suffers from uneven pacing and occasionally incomprehensible plotting and characterization.