A surgeon sets up an illicit clinic in the tunnels below the Temple tube station to find a cure for his ill wife, but he must fund his operation by treating criminals and other desperate patients who cannot seek help from regular medical facilities.
A surgeon's morals are tested after he sets up an illicit clinic beneath London's Temple tube station.
The clinic's secrecy falls into jeopardy when Daniel puts Beth's ex-colleague Anna in an impossible position.
Daniel finds he's moving far away from the man he thought he was, as dealing with London's most dangerous people brings big problems.
Things grow complicated between Daniel and Anna as they battle to save someone they love; Lee takes a risk that endangers them all.
Daniel's descent reaches new depths as he enters the world of organ trading; as police and gangsters close in, Jamie makes an error.
Hall and Moloney get a break in their hunt for Jamie; Daniel faces a difficult question.
Daniel crosses a line from which he can never return; Lee is forced to make a big decision about the clinic.
As Mercy and Keith close in, Daniel, Lee and Anna discover just how far they'll go to save themselves.
