In a dream within a dream, young Harry wakes in the cupboard under the stairs after a dream where he saw his parents die.
Aunt Petunia, in typical Aunt Petunia fashion, tells Harry he's an animal for wetting himself and that his parents died in a car accident, not murdered by a man shouting "Adkava Ad-something" (2.1.15).
The dream ends with a glimpse of Albus, then the voice of Voldemort hissing "Haaarry Pottttter" (2.1.25).