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Tasha Raveley (Antonia Thomas, "Misfits") learns new truths about her husband after he is killed in Afghanistan and quarrels with his mother (Clare Higgins, "Hellraiser") over her supposed role in his death. Louise receives a photo of her husband with another woman.

Pete (Greg Wise, "Sense and Sensibility") returns home and confronts Claire about her secret job, while Claire tries to convince Pete's daughter Millie (Rosie Day, "Outlander") to end her affair with a young soldier.

The inquest to determine the cause of Matt Raveley's death turns up evidence that paints the late Matt as a hero, but also sends Paula into disarray when Tom backs a verdict of "Accidental Death."

Joe returns from Afghanistan to find that Louise is prepared to take measures against him to protect herself and their children. Howard and Paula struggle with their finances. Meanwhile, Tasha and Tom reckon with the fallout of Matt's death.

In this emotional series finale, Claire gets cold feet, Tasha goes into labor, Paula and Howard reconcile their grief and Louise prepares for a difficult goodbye.