Ratchet's shoulders hunch in a little and the corners of his mouth tighten.

"...no. Not quite then. Some stuff happened in between. Shockwave almost ended the world, for a bit, some time travel happened, and--oh, yeah, Brainstorm's a Decepticon. Was a Decepticon. A really bad one, actually. It was... complicated." Ratchet shakes his helm a little. "It hasn't been that long since I set out looking for you. I should have come sooner."