The BBC have released the synopsis for the upcoming Doctor Who episode, Journey to the Centre of the TARDIS - read it below. The story airs in the UK and North America on April 27 and in Australia, Poland and South Africa a day later.
"A spaceship salvage team drags the TARDIS on board, sending its systems into meltdown.
As the Doctor marshals the motley salvage crew outside, he realises Clara is still trapped within his malfunctioning ship, pursued by a dangerous group of ossified monsters. He has just 30 minutes to find Clara and save his TARDIS before it self-destructs"