Transformers War for Cybertron Trilogy Season 2 Earthrise Trailer HD - Plot synopsis: of Chapter 2: With the Allspark gone, Megatron is forced to confront the harsh reality that his Decepticons are trapped on a dying Cybertron. Meanwhile, lost in the darkest reaches of space, Optimus Prime and his team embark on a desperate mission, unexpectedly running into ... the spacefaring Mercenaries.