When a catastrophic event severely compromises the Lazarus team's plans, George and Sarah must work together to execute their mission and are forced to go head-to-head with an unyielding Wes. Just when it's looking as though their entire mission has been futile, the pair realise that they have one last bargaining chip. But will they use it if it means abandoning their morals? And can George come to terms with the reality that he may not be the good guy after all?