In Fortress of Bliss, Maggie, played by Monaghan, is a meritorious American corpsman and a single mother. She returned from serving in Afghanistan for 15 months, only to find that her five-year-old son barely knew her and was closer to her ex-husband and his new girlfriend. When she picked up her son, slowly re-established her family ties, gradually adapted to daily life outside the war zone, and had a romantic love affair with a mechanic, the war broke out again, and despite public opposition, she resolutely decided to re-enlist and return to the battlefield.