Ep 1. Planet of the Dead

The David Tennant Specials season of Doctor Who marks the departure of the Tenth Doctor, portrayed by David Tennant. The first episode of this season is titled "Planet of the Dead."

The episode begins with the Doctor boarding a London bus on Earth that suddenly gets transported to a desert planet. The passengers, along with the Doctor, discover that the planet has a swarm of metallic insects called "The Tritovores" that feed on metal and who are also stranded on the planet along with them.

While exploring the planet, the Doctor and the passengers discover a beautiful temple guarded by the Dream Lord, played by Lee Evans, who warns them of the dangers that lie ahead. The Doctor then meets another character named Lady Christina de Souza, played by Michelle Ryan, who is a thief and has stolen a valuable artifact from a museum.

The Doctor and Lady Christina then team up to find a way back home for the stranded passengers while also evading the Tritovores and other dangers on the planet. Along the way, they uncover a dark secret involving the Dream Lord and the planet they are stranded on.

The episode is filled with action and adventure as the Doctor and Lady Christina try to save themselves and the passengers while also discovering the truth about the planet. David Tennant's portrayal of the Doctor is as charming and witty as ever, providing humorous moments throughout the episode.

"Planet of the Dead" is a thrilling start to the David Tennant Specials season and a must-watch for any Doctor Who fan.