Doctor Who: Once and Future: Time Lord Immemorial (6)

Slipping between bodies, the Ninth Doctor finds his TARDIS caught between universes as the cosmos starts to break down. A Doctor from another reality arrives and they join forces with Liv Chenka and the Lumiat to find the cause. Someone has desecrated the mythical Hall of the Time Lord Immemorial, where the sands of time from the multiverse are held. And those sands are running out...