Two years have passed since her child was kidnapped, and someone is dead as Meghan Shaughnessy is being held by police for murder.

Agatha is determined to keep her pregnancy safe; Meghan comes face to face with Grace's suspicions over Ben's paternity.

Agatha's quest for help reveals a twist; Meghan faces the loss of her marriage when the truth of Ben's paternity is revealed.

As Meghan's life spins out of control, the devastating truth of who she has killed is finally revealed – and, when Agatha is hospitalized after a severe beating in jail, their paths will again collide.

In prison with Agatha, the grief-stricken Meghan navigates a nightmare, while Agatha's dream of motherhood seems destined to be stripped away by forces outside her control.

In a thrilling finale to the series, Agatha and Meghan face their hardest trials yet – but with an explosive ending that neither will see coming.