In Santa Barbara, Calif., the chefs pick up fresh sea urchin to use in their first sudden-death, quick-fire challenge; in the elimination challenge, the chefs serve up surf and turf to a table of celebrated chefs and judges.

In Palm Springs, model Chrissy Teigen entices the contestants to make their best "date" dishes; the chefs cater a wedding for 25 gay couples in an elimination challenge.