In Back To The Future II, Michael J Fox, once again plays Marty McFly. The film follows on nicely from the first part to the film, and there is a different girl playing Jennifer Parker, Marty's girlfriend. It is Elizebeth Shue, who replaces the original Jennifer, Claudia Wells. I think the film is just as good as the other, which some people won't agree with.
The movie starts, where the last one finnished, Marty opens his garage it find his dream car, and Jennifer comes round to see him. Doc (Christopher Lloyd) comes back from the year 2015, fills up with fuel and drives Jennifer and Marty, Back To The Future, because Doc has found out that something bad will happen to their kids. But, Biff comes running out of the house and sees the DeLoreon flying, he becomes very suspicious, as DeLoreons arn't supposed to fly!
On the way to the Future Doc makes Jennifer fall asleep because she was asking too many questions about her future, so that is about it, for Jennifer's character, for a while. When they arrive in 2015 they leave Jennifer in the street. Marty finds out he has a son, Marty McFly Jr (Michael J Fox) and a daughter, Marleen (Michael J Fox) he has to take his son's place, so his son doesn't go to prison. He has to meet Griff (Thomas F Wilson) in the cafe 80's, and pretend to be his son, and say no, to Griff's proposal, A robbery. A seventy-year old Biff, is watching in the cafe.
Marty escapes from Griff and his gang, on a hoverboard (new scateboard which flies) and does nearly the same thing, he does in part 1. Biff is watching it all, and remembers the same sort of thing happening when he was at school, he gets curious. The gang crash into a big glass window, so Marty has saved his son from been jailed, as the gang have been imprisoned, the robbery doesn't happen and Marty Jr is free.
Marty is hassled by another "save the clocktower person" asking him for money. They are inturupted when a big screen comes up about sports, and it gives Marty an idea. He could find out all the results of the sports events and go back and bet on them, and he will get rich. He buys a book called Grays Sports Almanac, which contains all the results from 1950 to 2000, and plans to take it back with him.
Doc sees the book, and gives Marty a lecture, he goes to put it in he bin, when he sees two police women, taking Jennifer's fingerprint and then they take her back to her 2015 home. Doc leaves the Almanac behind, and Old Biff picks it up, he sees Normal Marty whoes pretending to be his own son and the real Marty Jr and wonders whats going on, he sees the DeLoreon fly off, and he remembers what he saw, 30 years ago. He figures the whole time machine thing out.
Doc and Marty follow the police through the skyway go to get Jennifer before she sees her older self and faints, they leave the Time Machine alone. Biff had been following them through the skyway and he gets out of a taxi, and goes in the time machine. He arrives back in 2015 just before Doc and Marty got back, so they don't suspect anything. Jennifer had seen her 47 year old self and collapsed, so the pair had to carry her back to the DeLoreon.
Now that they have Jennifer, Marty and Doc go back to 1985. They see things are very different and refer to it has "hell". They also discover that Biff is powerful and very rich, he is married to Lorraine, and poor old George is dead - Shot by Biff. They drop Jennifer at her house and leave her to sleep it of, and hope that she will think it was all a dream. They then go back to Doc's lab and Doc looks in the time machine and sees the top of Biff's cain, and the carrier bag which the sports almanac was in. Doc works out that, Biff took the book and gave it to himself when he was young, and that is why Biff was so rich. So they need to find out the exact date Young Biff got the book from Old Biff, so they can change things.
Marty goes and askes Biff about the book, to find out when he first got his hand on it, he says November 10th 1955, which is the day Marty went back to 1985. Biff told Marty the whole story about how he got the book, and how he said the Old Biff handed him the book. Marty has to dodge Biff shooting him, before him and Doc go back to 1955.
They arrive at 1955, and hide the DeLoreon, Doc stays with it and Marty goes to find where Biff lives. You get to see a day in Biff's life and Marty spends the day trying to get the book, without 1955 Doc seeing him, Young Biff seeing him, Old Biff seeing him, his parents, and of course his other self.
In Back To The Future part II, you can see lots of features from part I, including, the storm, Goerge punching Biff, and the other Marty performing, Johnny B Goode on stage with Marvyn Berry and The Starlighters. The movie finnishes with Doc been struck by lightning and him and the DeLoreon disappearing, leaving poor Marty stranded in 1955, with no time machine and no Doc, how will he get out of this one?