Get ready for the ultimate snack-down when award-winning judge Gordon Ramsay and renowned pastry chef Christina Tosi invite celebrities into the MasterChef kitchen to battle it out against each other for charity. The 2-hour special tests the culinary skills of the celebrity competitors, and also pits previous MasterChef winners against some of MasterChef Junior's Season 4 contestants, as they compete in culinary showdowns to win a cash prize for the charities of their choice. Celebrity Competitors Include Supermodels Gigi Hadid and Devon Windsor; Brooklyn Nine-Nine's Terry Crews and wife, Rebecca Crews; The Last Man on Earth's Boris Kodjoe and wife, Nicole Ari Parker; and Empire's Kaitlin Doubleday and Ta'Rhonda Jones; as well as MasterChef Winners Luca Manfe, Christine Ha, and Claudia Sandoval; and MasterChef Junior Season 4 Contestants Addison, Amaya, and Zac.

The team investigates the murder of tech entrepreneur turned venture capitalist who secretly developed a daemon, a background computer program that allows for undetectable data collection.

Sylvester comes face to face with his estranged father, a retired general, who asks Team Scorpion for help when he believes that a dictator in Africa has uncovered a deadly World War II-era weapon of mass destruction and intends to use it.

Kara does her best to support Winn when his father, the supervillain Toyman, breaks out of prison and seeks out his son for unknown reasons. Also, Cat offers Lucy a job at CatCo and Alex asks Hank to use his powers to help uncover Maxwell Lord’s plans.

A secret shopper is sent by corporate to test the employees as they try to work out who it is.

Ben and Lauren B. fly over the mansion in a bi-plane, share a romantic dinner and enjoy a performance from country trio Lucy Angel. Next, 12 ladies are coached by soccer stars Alex Morgan and Kelley O'Hara for a soccer competition; Jubilee enjoys a tryst with Ben at a spa; and Ben receives tragic news from home.

Digital distractions are used in an obstacle course, and the winners face a tough choice involving video chats with their loved ones. Later, the teams are rearranged and new bonds must be formed as a physical and mental challenge is presented.

Comedian Tracy Morgan (tour "Picking Up the Pieces"); Julianne Hough (Grease Live (2016) (TV), Dirty Grandpa (2016)). Also: Hank Williams Jr. performs.