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Things have barely settled from the excitement and resolve of
the original Back to the Future, when in pops that crazy inventor
Dr. Emmett Brown (Christopher Lloyd) with news that in order to
prevent a series of events that could ruin the McFly name for
posterity, Marty McFly (Michael J. Fox ) and his girlfriend are
whisked into the future to the year 2015, where Marty must tangle
with a teen rogue named Griff, who's obviously the descendant of
Biff, the first Future film's bully. Marty foils Griff and his
group when he jumps on an air-foil skateboard that flies him
through town at rakish speeds with the loser bullies beaten again.
Marty gets a money-making brainstorm before hopping in the
time-traveling DeLorean, and he purchases a sports almanac. He
figures that back in 1985 he'll be able to place sure-fire bets
using the published sports scores of the games that are yet to
happen. Unfortunately for Marty, Dr. Brown disapproves of his
betting scheme -- he feels too much messing with time is very
dangerous -- and he tosses the almanac. A hidden Biff overhears the
discussion about the almanac, sees it get tossed out, and grabs it.
Thus begins a time-traveling swirl to make the head spin. Biff
swipes the DeLorean, heads back to 1955, and with the help of the
unerring almanac, bets his way to power. The now-altered Biff world
has turned into a nightmarish scene with Biff the mogul, residing
in a Vegas-styled pleasure palace and running everything. It's all
our hero Marty can do to pull the pieces together this time, as he
must jump between three generations of intertwined time travel. The
end of Back to the Future, Part 2 introduces its sequel as the zany
professor has already time-dashed away to the Wild West of the late
1800s and invites Marty into a new adventure. ~ All Movie
Guide