Restaurant: Impossible is celebrating its 50th episode with an in-depth look at what it takes to make "Restaurant: Impossible" possible. Over the course of 49 missions, millions of viewers have tuned in to Food Network to watch the drama unfold as Chef Robert Irvine combats the issues and the people who are stuck in failing restaurants. This episode will unveil never-before-seen footage, including some of Robert's and his team's favorite, funniest and most frustrating moments. In addition, Robert will revisit several of his toughest restaurants to get updates on how they are doing today.