Grindor is a merciless Decepticon. In Revenge of The Fallen, Grindor kidnaps Sam Witwicky and brings him to Megatron. When Bumblebee and Optimus Prime arrive to save Sam, Starscream, Megatron, and Grindor fight the Autobots. Optimus Prime kills Grindor by ripping his head off with a big slash of his hooks.