Grindor is a Decepticon and Blackout's identical brother. He transforms into a Sikorsky CH-53E Super Stallion helicopter. In Revenge of the Fallen, Grindor transports in helicopter mode Sam, Leo and Mikela to an old warehouse where Starscream and Megatron are waiting. He later participates in the forest fight, which has Optimus Prime, Megatron, Starscream and Grindor. He is killed when he has his head ripped apart by Optimus Prime's Energon Hooks. Prime then comments on Grindor's broken parts.