Rachael Vs. Guy: Celebrity Cook-Off Season 2, Highlights from Episode 4 Save Collection Share Catch up on what happened on Episode 4 of Rachael vs. Guy: Celebrity Cook-Off. 1 / 20 Photo: Justin Lubin © What Will We Be Doing? For the next challenge, each celebrity team must cater a party, but not just any kind. They will be cooking for their pickiest eaters and toughest critics yet.