Red alert on the Red Planet as the Doctor fights the Water and time itself! We've got exclusive videos, clips and interviews online now and we'll be bringing you heaps more over the next few days including a commentary by David Tennant, Executive Producer and co-writer of The Waters of Mars, Russell T Davies, and Executive Producer Julie Gardner. Plus, a behind-the-scenes video on Gadget, a special screensaver and some surprise goodies...
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