The chefs pair up for a taste challenge, followed by a dinner service celebrating major contributors to "Stand Up to Cancer".
The contestants compete in a surf and turf protein relay for the chance to win a day of surfing in San Diego.
The newly reformed teams try to impress their celebrity diners, but another tough dinner service leads to a shocking elimination.
The chefs team up for a challenge to combine the flavours of two countries. Chef Roy Yamaguchi is a guest judge.
The remaining contestants are tasked with cooking their own version of a southern staple, to be judged by chef Chris Hastings.