"The Sky is Falling" is a popular children's story that features a character named Chicken Little. In the tale, Chicken Little believes that the sky is falling after an acorn falls on her head. She panics and decides to warn her friends, leading to a series of humorous misunderstandings. As Chicken Little gathers her friends, including Henny Penny and Ducky Lucky, they all become frightened and join her in spreading the alarming news. The story often conveys themes of fear, panic, and the importance of critical thinking, as the characters react without verifying the truth of the situation.