- Kacey's arm being pulled off by Starscream and the surgery afterwards. The moment when Optimus begins crying because he feels like a failure as a father for not being able to protect her is really heartwrenching...
- When it appears that Elita has died and Optimus goes into a fury and almost kills himself.
My Beautiful Rising Star
- When Kacey runs away during a blizzard because she feels unloved.
- The aftermath of when Kacey is kidnapped by Jim.