Sarah Jane Smith (Elisabeth Sladen) and the gang come face to face with the rhino-like Judoon

Investigative journalist Sarah Jane Smith, one-time companion to The Doctor, is back for a third series of alien-busting adventures, from creator Russell T Davies, which also features a special appearance from The Doctor himself, David Tennant, who stars in two episodes.

Sarah Jane is accompanied by her adopted son, Luke, his streetwise pal, Clyde Langer, their schoolmate, Rani, who lives opposite and has aspirations to become a journalist like Sarah Jane, and their Xylok super computer in the attic, Mr Smith. Sarah Jane’s robot dog, K-9, also joins the gang on their adventures.

In the first of this two-part adventure, Sarah Jane and the gang face the most dangerous day of their lives, as the rhino-like Judoon return. When prisoner Androvax the Destroyer crash-lands on Earth, a Veil is set free and starts to turn Earth’s technology against itself. And his next intended victim is Sarah Jane.

The Sarah Jane Adventures – Prisoner Of The Judoon Part Two Ep 2/12
Friday 16 October
4.35-5.00pm BBC ONE

Luke, Clyde and Rani fight their most fearsome enemy yet – Sarah Jane Smith – in the second episode of this two-part, alien-busting adventure.

As the Judoon fleet approaches Earth, it’s a race against time to stop Androvax. But with Genetech’s technology on the rampage, and Rani’s parents taken prisoner, can anything stop the Army of the Infinitesimal?

Luke is played by Thomas Knight, Clyde by Daniel Anthony, Rani by Anjli Mohindra and Sarah Jane by Elisabeth Sladen.

The series also features an extraterrestrial girl who can make people play games against their will; a living painting; the inhabitants of a supposedly haunted house; and monsters who want to infect Earth with a strangely aggressive weed. Finally, there is a chance for Sarah Jane to find personal happiness with someone who could be the perfect person to complete her family.