"If you need to, though," Rodimus says, before falling silent again and watching Ratchet work - doing his best to follow the nonverbal instructions Ratchet gives him. And when that doesn't happen, he picks up Drift's hand - giving it a squeeze before letting it fall to the side.

It's a while later before he says, so quiet that maybe Ratchet will miss it: "I know you will." Figure something out. Save Drift. He mentioned it, earlier, but now he feels like he needs to say it again.