91Èȱ¬

Diana

Ruth gets home one evening to discover her dead stepbrother's girlfriend, Angela, sitting in her living room. He had killed himself a year earlier after being fired from the Royal Protection Squad. Angela announces that he wasn't fired, as Ruth believed, because he was an alcoholic, but because he knew too much. She produces a microdot from her teeth; it contains information that suggests that not only was Princess Diana murdered by MI5, but Harry was directly involved in the plot.

Angela wants to uncover the truth, but Ruth refuses to help. The following evening, just as the team are leaving for the day, Angela arrives in the office. She is an ex-MI5 officer and given a hero's welcome. Ruth shouts for her to be thrown out, but it's too late. Angela has a handbag full of plastic explosive, a detonator and she says that no-one is to leave. She wants proof that there was a plot to kill Princess Diana, and she gives them until dawn to tell her what it was.

Harry denies Angela's accusations, but the team have no option but to put together a convincing explanation of what might have happened. It's too convincing and Ruth and Adam start to doubt Harry. Finally Harry explains the truth, that he was on a committee planning for worst case scenarios, and they inadvertantly predicted Princess Diana's death perfectly. It was nothing more sinister than that.

Ruth tells Angela the truth about Princess Diana. But she then lies about her relationship with her step-brother, and says he never loved Angela. She breaks down at this and presses the detonator. Luckily the bomb had parts missing, so doesn't explode. MI5 code is that an agent who goes to pieces in the field should be let go. So the team cover for Angela's actions, and she leaves the building.

Ruth discovers that Angela has stolen some documents. They realise the entire evening was just a distraction exercise. She appears to be planning to attack the Royal Family. Harry evacuates the Royals to a high security bunker, but just too late the team work out that that was Angela's plan all along. The bunker is booby trapped. Just in time, Adam cuts the wires and defuses the bomb.

Adam and Harry realise that Angela is dangerous and must be caught. They rush back to Thames House to rally the team. As they step from their car gunshots ring out. Adam is shot and falls to the floor, Harry looks round desperately and finally sees Angela on top of a building. He is staring down the barrel of a gun ...