 The most complicated song , " Walk Through the Fire " , leads all the characters to the climax from different locations for different reasons , reminiscent of the " Tonight Quintet " from West Side Story . When they all sing the chorus at once to the line " We will walk through the fire / And let it — burn " , two fire trucks race behind the Scoobies as they proceed to the Bronze . Whedon called the shot the " single greatest thing we ever did " . Each of the singers in this song , which " marries soft rock to the function of a dirge " , connects musically to earlier songs while foreshadowing Buffy 's next number and the final chorus , providing an ominous anxiety . 
