A teenager by the name of Christine McPherson, who usually goes by her nickname Lady Bird, has just finished touring a series of Californian colleges. She is now being driven back to her home in Sacramento by her mother, Marion. After graduating, she intends to apply to schools outside of California, discontent with the boring life she leads. Marion, believing Lady Bird to be ungrateful, does not agree with her decision and swiftly rebukes her. Lady Bird, deciding she would rather throw herself out of a moving car than suffer her mother’s interminable lectures one second longer, proceeds to do just that.