Sideswipe have been a lost boy for almost 90 years of his life. Bumblebee have never met his father, until now. Sunstreaker, even though he was worst brother that any one can ask for, he wishes to make up for his mistakes. They've all met eventually and it just became an amazing story that they will remember for their lives.

Bumblebee went on patrol and mysterious vanished without a trace. Two months later, he reappeared and he pledged his loyalty to the Decepticons and has a relationship with Saberhorn. What happened?