A surgeon's morals are tested after he sets up an illicit clinic beneath London.

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 problem

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 the ultimate question - how far will he go for someone he loves?

Daniel crosses a line from which he can never return. Lee's forced to make a big decision about the clinic. But will it be too late?

As Mercy and Keith close in, Daniel, Lee and Anna discover just how far they'll go to save themselves.

As Beth awakens from her coma, Daniel's world continues to close in, as the police - and his wife - look for answers.

A desperate Daniel and Lee deal with a dangerous medical fixer. Beth decides to pursue her research. Eve's horror at Daniel's duplicity is offset by an amazing discovery.

Daniel is summoned by Gubby, Anna crosses a moral line, and Beth makes a horrifying realisation. Lee has an epiphany after meeting Eve.

Daniel is confronted with the consequences of his actions; Lee's horizons widen when he meets Eve's friend, Ash; Anna is determined to get results at any cost.

Daniel discovers the price of defying Gubby; Lee and Ash go on a reconnaissance mission; Anna's reckless behavior comes to a head.

Daniel and Anna decide to go on a road trip that has the capacity to change the course of their lives forever.

Daniel refuses to let his daughter pay for his mistakes; Lee and Ash prepare to change the world; Anna is surprised by what she finds at the pharma company.