Plot: In the Season Eight premiere episode, 40 of America's best home cooks travel to Los Angeles to compete in the MASTERCHEF Battle for a White Apron challenge, during which they will face off against each other to try to earn a place in the Top 20. Judging the battle rounds will be Gordon Ramsay, Christina Tosi, and new judge and award-winning chef Aarón Sánchez, who will taste for flavor, creativity and presentation