 The special continues the plot from the end of the second series of "Green Wing", which ended with Caroline Todd (played by Tamsin Greig) becoming engaged to Guy Secretan (Stephen Mangan), "Mac" Macartney (Julian Rhind-Tutt) learning that he was going to die, Alan Statham (Mark Heap) and Joanna Clore (Pippa Haywood) fleeing from the police after they murdered Joanna's cousin, and Karen Ball (Lucinda Raikes) having a dramatic change of personality after she fell out of a window.While this was the final episode of "Green Wing", an alternative ending was produced in case a third series was written.There was an argument between the cast and the writers about which ending should have been used.