What happened to Barricade in Transformers 2007?

they did not show in the movie what happend to barricade but in the comics he was "killed" by optumis prime BUT he was repared and still was on earth when starscream went back to cybertron with a new goal for barricade to look for answers of sam. i know he will come back in the next movie, TRANSFORMERS THR GHOST OF YESTERDAY. AND HOW DO I KNOW ON THE BOX OF THE TRANSFORMERS REVENGE OF THE FALLEN BARRICADE TOY IT SAID WHAT HAPPEND TO HIM AFTER MISSION CITY