Back to the Future (1991)

S01E12 Gone Fishin'

At the age of four, Doc had a terrifying experience when he tumbled into a river while fishing, leaving him with a lasting fear of water. Once the boys and Marty discover this, they decide to help him confront his fear. However, their well-meaning efforts backfire, resulting in a chaotic incident involving a stunt plane. This unexpected turn of events catapults a young Emmett Brown into the spotlight as a renowned daredevil.