Many regard season 7 as Pertwee's best season and a top 5 overall season (out of 26), and Sentinels of the New Dawn very much relates to that season albeit set later. Dr Liz Shaw was only in this one season; Pertwee only ever had one companion and having both lead cast characters as highly intelligent perhaps alienated the viewers. In hindsight it was inspired casting, and very sad that it was not allowed to continue. This however, is where Companion Chronicles really serve their purpose; giving us a new story, whilst developing the story thread of a past companion.

Caroline John is more capable and interesting than some other companion actor/actresses in depicting herself and other characters. The story is about an organisation that are plotting to change the world which is quite in keeping with fiction from this period. There are only two actors in the production but it certainly feels like more than two. There is appropriate Pertwee-esque action scenes and Pertwee's character is well defined without lifting exact-mannerisms from televised stories as other Companion Chronicles do.

Sentinels of the New Dawn is quite ambitious on audio as it does take pace over quite some physical distance. The plot therefore is frequently, but not always engaging, as the narrative focuses on particular scenes. It ties up well leaving a scope for further development and the changing world theme and how it was planned for execution is certainly well crafted.

Listening to the interview at the end, I am pleased to hear the writer and producer enthuse over the season 7 era and hope we have more in the future.