A show about Pam St Clement on a marijuana-fuelled road trip may sound like one of Alan Partridge’s wacky ideas, yet, rather than being a gimmick, this three-part series is original and thought-provoking.

Christopher Biggins, Linda Robson, Bobby George and John Fashanu join the former EastEnders star as she travels through US states where cannabis is legal, and the gang finds their views on the drug changing as they go.

With their journey sure to start debates among viewers at home, they might not be the only ones. Continues on Wednesday, with episode three on Friday.