The Doctor is an observer and UNIT are providing security cover at an experimental drilling project designed to penetrate the Earth's crust and release a previously-untapped source of energy, named Stahlman's Gas after i…

The plot revolved around the trials of medical students at St Swithins hospital in London.

过去的几年当中（2008年前），石油价格翻了三番，为什么会这样？这其中会不会有某种掩盖真相的阴谋？有的人说美元的贬值导致了油价上涨；也有人说投机商囤积居奇，在背后左右着石油价格。现在，另一种声音正在日益壮大：供给关系的变化在…

Philip Hinchcliffe eraThe planet Karn is home both to a mystic Sisterhood, whose sacred flame produces an elixir of life, and to Mehendri Solon, a fanatical scientist who is using the remnants of spaceship crash victims …