Doctor Who (2005) (2005)

S2E9 The Satan Pit (2)

The TARDIS arrives at a research facility situated on a planet circling a black hole, a perplexing scenario that baffles the Tenth Doctor. The team at the base is engaged in drilling deep into the planet's core, hoping to harness the energy that maintains its orbit. Yet, lurking beneath the surface is an ancient malevolence that has stirred from its slumber…