Bert and Sam have lived in Spain for the past few years, Sam in the rolling hills, and Bert in the slightly less idyllic setting of a prison cell. After a decade behind bars, a cancer diagnosis allows Bert to be released on humanitarian grounds. With only a few weeks to live, she decides to orchestrate a multi-million pound art heist that will test her courage and prove her worth. Sam, reluctantly, lets Bert back into her life and quickly discovers that she is returning to the criminal life she had tried to leave behind.