In the season premiere, Chris Evans takes the Dodge Viper ACR to the home of 'Top Gun' in Nevada to battle Sabine Schmitz in a Chevrolet Corvette Z06. Matt LeBlanc tackles the wild Moroccan desert in Somerset's finest off-roader, the Ariel Nomad. Back on British soil, Evans and LeBlanc take a rather soggy road trip to Blackpool in a pair of roofless Reliant three-wheelers, whereupon they are tasked with defending the honor of their nations in a series of grueling UK-versus-US challenges. Back in the studio, this week's celebrity guests include actor Jesse Eisenberg ('Now You See Me 2', 'Batman v Superman: Dawn of Justice', 'The Social Network') and Michelin star chef and TV presenter, Gordon Ramsay.