Optimus Prime finds himself tumbling headfirst onto a strange and hostile alien planet. His attempts to discover more about his surroundings are met with violent onslaughts from the monstrous Scorponok and the fearsome Grimlock, who chases Optimus through the Jungle. 

Bumblebee teams up with Megatron in a high-stakes target shooting challenge while Optimus Prime races through the jungle, having escaped Grimlock's pursuit. Will he reach Bumblebee before it's too late?