Biff's Almanac Theft
A single stolen book reshapes history into a dystopian nightmare.
In the narrative of the second film, this event serves as the inciting incident for the alternate timeline saga. It involves Biff Tannen acquiring a book containing future sports scores, allowing him to manipulate his financial destiny across generations. The theft transforms the villain from a local bully into a powerful crime lord in an altered reality. This object becomes the focal point of Marty McFly and Doc Brown's mission to restore the original timeline.
Quick Facts
- Primary film
- Back to the Future Part II
Lore & Background
The theft occurs in 2015, where an elderly Biff, having overheard Marty and Doc, retrieves the discarded almanac and steals the time machine while they are occupied rescuing Jennifer. In the altered timeline, Young Biff uses the book's predictions to win bets and amass immense wealth. By 1985 Biff is one of the country's wealthiest and most corrupt men. They realize that as long as the book exists in the past, the alternate timeline cannot be erased completely.
Reader's Guide
In the second film, Marty and Doc return from 2015 to an alternate 1985 in which Biff murdered George McFly in 1973. In the altered timeline, young Biff uses the book's predictions to win bets and amass immense wealth. Back in 1955, Marty secretly follows the young Biff and watches him receive the almanac from his 2015 self. He retrieves it before its knowledge can fully cement the new reality. Marty burns the book, destroying the source of the corruption. This arc highlights the danger of changing history with foreknowledge and the fragility of time travel mechanics when physical objects cross temporal boundaries without authorization.
More in Films & Narrative Arcs
Elsewhere in Back to the Future
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