The mysterious Doctor travels through space and time, with his human companions righting wrongs and experiencing the thrill of adventure. He’s a Time Lord and the last surviving member of his race.

After a chance meeting with the Doctor, trainee doctor Martha Jones can’t resist the urge to explore the wonders of time and space and becomes the Doctor's new companion.

Captain Jack is a charming and inventive con-man who encounters The Doctor and Rose on twentieth century Earth. He teams up with the TARDIS crew and soon proves his worth in a scrape.