When Bumblebee starts experiencing memory loss, his ally Windblade steps in to help, fixing his memory chips so he can recall his past exploits on Cybertron. With his memories restored, Bumblebee uncovers a hint that guides him and Windblade in finishing their present mission and rescuing their comrades, all while being oblivious to the fact that Megatron has dispatched his Decepticon assassins to track them down.