ER - Season 04 - Episode 14 - Family Practice

Greene returns to San Diego to help care for his mother who fell off a ladder and injured her knee. Cynthia impulsively follows him out west. While in the naval hospital, Greene's mother exhibits strange behavior. He discovers that his mother regularly seeks professional help for depression from a psychiatrist. She also suffers from dementia. His father, a retired naval captain, is unaware. Later, his father suffers respiratory distress and receives emergency treatment. Another emergency forces the two Greene men to admire each other's resolve. Greene's mother untactfully makes Greene realize his relationship with Cynthia is mainly a sexual one.