The "Campion: The Complete First Season" DVD box set includes all episodes from the first season of the BBC series based on the Margery Allingham mysteries. This drama falls under the mystery sub-genre, providing viewers with captivating storytelling and intriguing plots. Released in 2003, this box set allows fans to enjoy the complete first season of the Campion series in the comfort of their own home, making it a valuable addition to any TV collection.