sentences:  Mary Holmes becomes emotionally unbalanced and must be sedated.She later regains lucidity in time for her, Peter, and their baby daughter to consume the drug (off-screen).Towers wants to stay with Moira, but many of his remaining crew want to head for home to die in the US; he chooses his duty over his love for Moira and joins his crew as they attempt to make it back to a radioactive America.