Knowing that this is most likely a trap set by Megatron, he proceeds anyway with a rescue mission. He lets himself, Bumblebee, and Sideswipe be captured by the Decepticons and is sent to a prison in Kaon, the decepticon capital, in an elaborate scheme to free Zeta Prime and all imprisoned Autobots.
Knowing that Megatron has likely set a trap, Optimus Prime decides to proceed with a rescue mission anyway. He allows himself, Bumblebee, and Sideswipe to be captured by the Decepticons and sent to Kaon prison, the Decepticon capital, as part of a plan to free Zeta Prime and all imprisoned Autobots.