Bill (Alex Winter) and Ted (Keanu Reeves) are two puppet-like
airheads who are on track for flunking their high school graduation.
They are given one more chance by their teacher.
If they pass
an oral test on how a historical personality might react to modern
times, they'll pass.
They get some unexpected help from Rufus, who is from the future
where society is based on Bill and Ted's painful rock music.
Rufus whisks them off in a time machine to rescue his society and
on the way they pick up historical characters and clichés that help
them pass their finals.