Upon Thor's return, he finds that Dr. Doom has gone back in time to prevent the Avengers from being formed to take over the world.
Knock Out unlocks a new power that allows him to control sound. Meanwhile, Starscream activates the stolen Red Energon and gains super speed. Will the Autobots be able to fight against these new super-powered threats?moreless
Ratchet reluctantly calls upon Wheeljack for back-up in his mission to retrieve the third Iacon relic. Upon arriving at the location, the two Autobots are confronted by Soundwave, but they get a one-of-a-kind opportunity when Soundwave's minion, Laserbeak, is disabled.moreless
Bulkhead is trapped on the Decepticon Warship and amid dual tries on Megatron's life.
Bumblebee continues to struggle with his role on the Autobots team.
With Optimus Prime having lost all memories of his life as a Prime and psychologically reverting back to his time before the war as Orion Pax, Megatron manipulates him into joining the Decepticons with the intention of using him to decipher records seized from Iacon. As the Autobots try to track Optimus Prime, Jack learns from Ratchet that the card key is connected to Vector Sigma and that they must find a way to get to Cybertron. They ultimately decide on using the Decepticon space bridge to return to Cybertron, but must locate it first. Starscream returns to theNemesisand manages to steal energon from the vault, but when a Decepticon walks his way, he hides in the closest room, where Orion is seen working. He immediately adresses him as Optimus Prime and aims his missiles at him.moreless
When the Autobots learn of the Decepticons' plans to build a Space Bridge, Optimus decides to face Megatron once and for all.
The Leader creates a dome of gamma energy that mutates everyone in the Cube into gamma monsters. Now, it's up to the Avengers to get inside the Cube and shut down the gamma dome, but will they wind up just like everyone else in the Cube? Meanwhile, Hawkeye confronts the Black Widow again.moreless
When HYDRA forces attack the United Nations, Iron Man rushes to the rescue of the world leaders, and learns a shocking secret about S.H.I.E.L.D.
Graviton, who has been unconscious and imprisoned in the Raft for ten years after an experiment he performed per Nick Fury's request went awry, finally awakens and escapes. Now, Graviton is bent on getting even with Fury and with the power to control gravity, which he acquired from the accident, this goal seems quite feasible.moreless