Back to the Future Part II (1989)

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Overview

Back to the Future Part II is the second installment in the Back to the Future trilogy, following the 1985 original and preceding the third in 1990. The film stars Michael J. Fox as Marty McFly and Christopher Lloyd as Doc Brown as they fix the future of Marty's kids and attempt to stop the time traveling shenanigans of Biff Tannen (Thomas F. Wilson).

Plot Summary

Marty, Jennifer and Doc Brown

After being sent back to 1985 at the end of the first film, Marty McFly is visited by Doc Brown from the year 2015, who tells Marty and Jennifer that they must go with him to the future, as there is a problem with their kids. The three of them go to the future via the DeLorean, which can fly now. Biff Tannen sees it disappear in the sky.

In the future they travel through the sky narrowly missing traffic. Jennifer starts asking a lot of questions about her future so the Doc tranquilizes her. Doc tells Marty that his son gets arrested for being part of a robbery. Doc's plan is for Marty to portray his son and to avoid participating in the robbery.

Griff and company

Marty Jr. meets up with Griff, who is Biff's grandson, and his gang in the Cafe 80's. Marty Jr. gets knocked out so Marty takes his place. He tries to fight Griff but finds that bionic implants make a stronger bully. Instead he escapes and commandeers a hover board. Griff's gang corner Marty into the lake. The hover board stops. They attach themselves together to the jet-powered board for a high velocity bludgeoning. At the last moment Marty jumps into the lake, sending the gang into the courthouse nearby. Griff's gang becomes arrested instead of Marty Jr., thus changing the future.

Afterwards he finds a Sports Almanac from an antique store. Marty plans on taking it back to 1985 but is convinced otherwise by Doc Brown due to its dangers to the space-time continuum. Unknown to both of them, a much older Biff Tannen was eavesdropping on their conversation. He takes the almanac from the trash and recognizes the DeLorean from 1985.

Old Biff and Young Biff

Meanwhile the police find Jennifer unconscious and come to the conclusion that it's actually the 2015 Jennifer McFly and take her to her future house. She must avoid detection with her future family, and especially with her future self. Either a hole in the space-time continuum will occur, or both versions will faint from shock. The latter happens. While Doc and Marty are rescuing her, Old Biff steals the time machine and heads back to 1955. Therein he gives the book to his past self.

Young Biff then gambles using the Sports Almanac and becomes rich. He then takes over Hill Valley, so when Doc, Marty and Jennifer (who's once again, unconscious) return to 1985, they're in an alternate version of Hill Valley. Before realizing that their time has changed they leave Jennifer on her porch. In the alternate 1985, Marty's father, George, is dead and Biff is now married to Lorraine, making Biff Marty's step-dad. Doc Brown and Marty must find what caused the timeline to shift. So Marty investigates Hill Valley until he ends up in Biff's tower. Inside he asks how Biff got rich so Biff tells him about the almanac. However he does mention that he was warned about such questions. Biff tries to murder Marty so he runs to the roof. When things look bleak Marty escapes in the DeLorean from the roof's edge.

Doc Brown and Marty return to 1955 to get the Sports Almanac from Biff. At the same time they have to avoid themselves. Marty follows Biff stealthily to the Enchantment Under the Sea dance from the first movie. Right after George punches Biff out cold, Marty takes the almanac. Shortly after Biff and his thugs chase him. He almost escapes but is goaded to fight Biff. That's when Marty's other self knocks him unconscious by slamming a door open. Biff notices the almanac and takes it back.

Doc picks up Marty in the DeLorean and flies theabove Biff's car so Marty can hover board in close. Biff sees Marty sneaking up, so he tries to lose Marty by smashing him against the tunnel's walls. Marty evades it and succeeds in snatching the almanac again. Marty is shaken free from the car then Biff tries to run him over. In the nick of time Marty is rescued by the Doc so Biff runs into manure again.

Then Doc accidentally turns on the time circuits. Marty burns the almanac but before he can get in the DeLorean, a bolt of lightning strikes the time machine, causing it to disappear to an unknown time leaving Marty stuck in 1955.

Moments later a courier from Western Union arrives with a letter for Marty. It turns out it is from Doc, who is now in 1885 after the DeLorean malfunctioned. Marty quickly finds the 1955 Doc Brown who has just returned the earlier version of Marty to the future. Marty tries to explain the situation to Doc Brown but he faints from the shock.