Transformers: The Rise of Unicron: is a movie that will take place immediately after Transformers: The Darkest Hour, directed by Steven Spielberg. In Part of a new trilogy confirmed by producer Don Murphy.
After the death of Optimus Prime in the sixth movie and learning of the threat Unicron brings to the Earth. Mikaela Banes decides to resurrect Optimus and save her Family including Mankind from Extinction.
In the end, Optimus Prime is revived in time to help Mikaela use the power of the Matrix of Leadership to destroy Unicron, Megatron and all the Decepticons forever.
Mikaela Banes (Main Character)