As the desperate father works his fingers to the bone ... Then, on a stormy night, the hideous government nanny extraordinaire, Nanny McPhee, sets foot in Cedric's household, bent on transforming ...

After McPhee, 39, shared on Friday that she and Foster, 73, experienced a "horrible tragedy" in their family, sources tell PEOPLE that 2-year-old son Rennie David's nanny died suddenly.