An Earthly Child is a Big Finish Productions audiobook based on the long-running British science fiction television series Doctor Who.

It is free to those whose subscription includes Plague of the Daleks.

The Doctor returns to twenty-second century London after his granddaughter Susan sends out a distress signal.

There he discovers the Earth enveloped in xenophobia, an alien invasion taking place and his rebellious great-grandson, Alex, in the middle of it all.

He previously appeared with his father in the stories Immortal Beloved and The Girl Who Never Was.