Three more superb episodes from David Tennant's first series in the TARDIS.
The Impossible Planet: The TARDIS lands on an alien planet shrouded in a darkness that even the Doctor can't figure out. And what is lurking at the bottom of The Satan Pit?
The Satan Pit: As Rose battles the murderous Ood, the Doctor finds his every belief being challenged to the core, as the Pit beckons. With the planet threatening to fall into the black hole, the Doctor must make the ultimate sacrifice.
Love & Monsters: A run in with the Doctor at a young age leads Elton to a group who's studying him, they become friends and have a laugh until Victor Kennedy arrives. Suddenly everything becomes more serious then people start disappearing from the group. Can the Doctor save Elton and explain his past before he's absorbed by the Absorbaloff.