Doctor Who (2005)

S05E08 The Hungry Earth (1)

In 2020, an unprecedented drilling endeavor is in full swing, led by Dr. Nasreen Chaudry and her crew, who have penetrated 21 kilometers into the Earth's crust. However, a mysterious force begins to awaken deep beneath the surface. Meanwhile, Amy Pond realizes that escape is impossible when the very ground she stands on becomes unreliable.