![Brian Greene](http://image.tmdb.org/t/p/w92/jpKGMplfT09D71ntJNpVC8uMlsX.jpg)
One of the most ambitious and exciting theories ever proposed—one that may be the long-sought "theory of everything," which eluded even Einstein—gets a masterful, lavishly computer-animated explanation from bestselling author-physicist Brian Greene, when NOVA presents the nuts, bolts, and sometimes outright nuttiness of string theory.