The story is about how two types of robots, Autobots and Decepticons, from outerspace fought against each other with the human beings caught in between. Autobots protect humans and transform themselves into automobiles while Decepticons don't like humans and transform themselves into weapons.
Learnt a great deal on how the robots came about from this film! Remembered watching cartoons on transformers when I was young but had no idea why they were fighting each other. The transformation of the robots look very cool! Was also impressed by the two lead actresses in the film! One was a car expert while the other was a computer security expert.
Internet Movie Database Link