What is is the underground newspaper?

Answer 1

There are a few, the main one they give out on the tube is called Metro. There are others called London Lite & The London Paper.

Answer 2

An underground newspaper is a publication that is independently produced and distributed outside of mainstream media channels. It often covers topics and issues that are not addressed by traditional media outlets and serves as a platform for alternative viewpoints and dissenting voices. Underground newspapers have historically been associated with social or political movements seeking to challenge the status quo.