The BBC Press Office has released the synopsis for the first part of the final story of The Sarah Jane Adventures Series 2, 'Enemy of the Bane'.
Gita vanishes and Sarah Jane encounters an unwelcome face from the past - Mrs Wormwood - as the children's drama series, produced by Russell T Davies, continues.
Now hunted by the Bane, Mrs Wormwood needs Sarah Jane's help to foil their plan to take over the galaxy with an ancient alien power. And Sarah Jane also needs help - from the Brigadier.
Enemy of The Bane will Premiere on CBBC on December 8.