Bourdain explores the distinct culture of the West African nation Senegal, which despite its deep-rooted religious beliefs, is known for its nightlife, global musical influence, vibrant fashion scene, rich food culture and history of tolerance. Featured guides on this journey include Chef Pierre Thiam, NPR Africa correspondent Ofeibea Quist Arcton, and famed musician Youssou N’Dour, for conversation and a taste of maffe, a much loved rich beef stew, popular throughout West Africa.

An old foe comes back into the picture. Gilly meets Sam’s family. Arya faces a difficult choice. Jaime faces off against the High Sparrow.

Marty must deal with a boy band. Doug copes with post-TED Talk "fame".

Richard’s new relationship is threatened by neuroses. Big Head and Erlich’s launch party has snags. Dinesh falls for a foreign coworker.

In the first show of the new series, 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 wildest Morocco 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 honour of their nations in a series of gruelling UK-versus-USA challenges. Back in the studio, this week's celebrity guests are Social Network star Jesse Eisenberg and Gordon Ramsey.