The action builds to fever pitch, as war rages on all fronts. Above ground, Starscream prepares to activate Megatron's mecha-forming machinery, transforming Cybertron irrevocably, and dooming the Autobots the process, while below Optimus Prime and Megatron battle across time, witnesses to the ultimate future of the Transformer race. Prime's last and best hope may be his most outspoken adversary... Grimlock! Featuring an all-new cover by new Transformers: Armada artist Guido Guidi!
— Description from Comic Vine community (comicvine.gamespot.com).
