Transformers: Animated season 4

As Megatron fakes his death for using Omega Supreme, Shockwave, Lugnut and Blitzwing start a breakout at Cybertron. Bulkhead returns to his Energon farm when the decepticons attack, and ends up kidnapped. And all his friends are getting absorbed into Megatron into a Marauder form. Then he starts attacking the Autobots, and now Optimus Prime (still in control of Ultra Magnus' hammer), Bumblebee (now an elite guard), Ratchet, Jazz (replacing the deceased Prowl) and Ironhide (replacing Bulkhead) will have another chance to stop him again with the help of 15-year old, Abigal Witwicky, niece of Spike and Carla Witwicky.

Characters

 * Autobots:
 * Optimus Prime (Voiced by - John DiMaggio)
 * Ratchet (Voiced by - Corey Burton)
 * Ironhide (Voiced by - John DiMaggio)
 * Jazz (Voiced by - Phil LaMaar)
 * Bumblebee (Voiced by - Bumper Robinson)
 * Blackaracnia (Cree Summer) - reforms when she realizes that Sentinel and Megatron are the same thing and fixed the past!
 * Spike Witwicky (Corey Burton) - partner to Bumblebee
 * Carly Witwicky (Tara Strong) - Spike's wife
 * Daniel Witwicky (Tara Strong) - Spike and Carly's son
 * Nancy Witwicky (???) - Daniel's 4-year old sister
 * New Characters:
 * The Fallen (Voiced by - Mark Hamill)
 * Sideswipe (Voiced by - Neil Ross)
 * Kup (Voiced by - Edward Asner)
 * Unicron (James Earl Jones)
 * Primus (James Earl Jones)
 * Decepticons:
 * Megatron (Voiced by - Clancy Brown) - revealed to be Sentinel Prime, he planned on changing the Past to gain power over Cybertron, and made a deal with Ultra Magnus by giving him a chance to rule Cybertron by allowing Megtron to be his successor!
 * Shockwave (Voiced by - Corey Burton)
 * Blitzwing (Voiced by - Bumper Robinson)
 * Lugnut/Tankor (Voiced by - Kevin Michael Richardson) - transformed into Tankor thanks to Dark Energon!
 * Starscream (Voiced by - Tom Kenny) - trapped as Megatron's slave under the Dark Energon
 * Cyclonus (Voiced by - Liam O'Brien) - lost his cowardness as Skywarp and became more evil as Cyclonus thanks to Megatron with the Dark Energon
 * Scourge (Voiced by - Jim Cummings) - once Thundercracker, now Scourge with his Sweeps