Go get the little one and tie up a “loose end” at least, I suppose.

Rigel… 

*Where is he? Megatron goes to track his coordinates. Hopefully he hadn’t thrown away the ground bridge link… No. Megatron draws back from his console. He could be overreacting. The anonymous humans could be lying… but there are many of them, all saying the same thing. He sends the order to finish tracking the youngling.*

He is not a loose end. He is a child.