Um actually yeah, in the cartoons there was a random kid and random girl helping em out. But the point is that the Autobots feels its the humans right to freedom and so they are protecting them from the Decepticons who wish to use the humans as slave labor to re-build there planet Cybertron. Which was ultimately destroyed, (not physically to the point of no planet) that it could no longer sustain life. So thats the jist of the movies.