film / 1989
Back to the Future Part II
Marty and Doc travel between 2015 and altered versions of 1985 to undo Biff's theft of the sports almanac.
Verified facts
- Runtime
- 1h 48m
- Director
- Robert Zemeckis
- Released
- 1989
- Origin
- United States
PlotGeeks explainer signals
Why read this explainer
The almanac changes hands across different trips through time. Keeping its movements separate from Marty and Doc's journeys explains why repairing the altered 1985 requires another visit to 1955.
PlotGeeks note
Biff changes history by giving his younger self information. Marty has to remove that advantage at its source before returning to his own time.
Connected knowledge
Connected in PlotGeeks
Related explainers and browse pages for Back to the Future Part II.
- Appears in Back to the Future trilogy order
See where Back to the Future Part II belongs in the listed reading and viewing orders.
- Explore Family
Family can offer shelter, impose a role, or become the system a character must escape.
Timeline
Major events
- The visit to 2015
Marty and Doc try to protect Marty's children while an older Biff finds the sports almanac.
- An altered 1985
The travelers return to a hometown transformed by Biff's use of future sports results.
- Marty burns the almanac
Back in 1955, Marty destroys the book that produced Biff's fortune.
- Doc disappears into 1885
Lightning sends the DeLorean away, and Doc's old letter reaches Marty in 1955.
Story in 60 Seconds
The short version
Marty and Doc travel to 2015 to prevent trouble involving Marty's children. During the visit, an older Biff gains access to a sports almanac and takes it back to his younger self. Marty and Doc return to a changed 1985, where Biff's wealth has reshaped their hometown and Marty's family. They trace the change to the almanac and travel to 1955 to intercept it. Marty must recover the book while avoiding interference with events from his earlier visit. Fixing one future requires finding the action that gave Biff control of the past.
Spoiler sectionEnding ExplainedShow ending detailsHide ending details
Marty burns the almanac, removing the source of Biff's altered fortune and restoring the timeline. Lightning then strikes the DeLorean and sends Doc to 1885. A courier immediately brings Marty a letter that Doc wrote seventy years earlier. The almanac crisis is resolved, but Marty remains in 1955 and seeks that year's Doc for help with this new separation.
Original context
Why it matters
The letter arrives after seventy years
Doc's long wait in history becomes an immediate delivery for Marty. The letter distinguishes the time experienced by its writer from the moment experienced by its recipient.
Key turning points
The wrong 1985 identifies the problem
Returning home shows Marty and Doc that the almanac has changed more than a single game result. They must find its arrival in the past to undo Biff's advantage.
Character links
Who connects to whom
Character motivations
Marty repairs his family's present
The altered town makes the consequences of the almanac personal. Marty's attempt to recover it protects his family from the future Biff has built around his winnings.
Explore the story
Creators, themes, and characters
Reading and watching order
Where this story fits
Films
Back to the Future trilogy order
Watch the trilogy in release order. Parts II and III continue from cliffhangers and depend directly on changes made in the earlier films.
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