- Thursday, May 15: Marty arrives to Tannen Estates and finds his door locked. After telling his parents something that only he would know, he is attacked by Biff, Kid, Cliff, and Riff but is saved by Doc. Marty and Doc travel to August 25, 1931. This creates Timeline 36, which begins at Doc and Marty's entry point on August 25, 1931 and timeline 35 fades away.
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