Davies brought Sladen back to 'Doctor Who' for an emotional return, along with K-9, opposite David Tennant, the 10th Doctor, in an episode called 'School Reunion'. She is the only assistant of the Doctor to ever make such a comeback, having originally starred alongside Jon Pertwee and Tom Baker between 1973 and 1976.
The new programme will appear on BBC children's television channel CBBC and will be called 'The Sarah Jane Adventures'. It stars Sladen as investigative journalist Sarah Jane Smith.
The series begins with a 60-minute special, which will be broadcast in early 2007, with the series due later in the year. Set in present-day West London, the programme stars original Sarah Jane actress Sladen and Yasmin Paige, who plays her 13-year-old neighbour Maria. The two form an unlikely alliance to fight evil alien forces at work in Britain.
Davies said: "Children's TV has a fine history of fantasy thrillers -- I loved them as a kid, and they were the very first things I ever wrote. So it's brilliant to return to such a vivid and imaginative area of television."
Sladden said: "I left Sarah Jane but she never left me. I can't wait to return to Cardiff to find out what's going to happen to her next."
In the special, Maria and Sarah Jane are brought together in their battle against the scheming Ms Wormwood, played by Samantha Bond, who has played Ms Moneypenny opposite Pierce Brosnan in the recent Bond movies.
'Doctor Who' will return with a Christmas special this year and a third series in spring 2007.
Davies has also been working on the hotly anticipated 'Doctor Who' spin-off 'Torchwood' , following the adventures of Captain Jack, begins this autumn on BBC Three.
K-9, Sarah Jane's goodbye present from The Doctor, makes an appearance in the special but will not appear in the series.
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