The Matrix of Leadership
As seen in: Transformers: Revenge of the Fallen
So here's the story behind The Matrix of Leadership. Before Optimus Prime and his tin can gang landed on Earth there was a first wave of warring Transformers who created the Sun Harvester to do exactly what its name implies. Following? The other primes of the time used the Matrix of Leadership to stop this evil plan and now, in Revenge of the Fallen, Shia LaBeouf has to find this same Matrix and do a bunch of other unexplainable things to prevent The Fallen from once again harvesting our UVs. So basically there are two weak MacGuffins with terrible names here (The Matrix of Leadership and the Sun Harvester), making Revenge of the Fallen on Optimus Prime example of how one hot girl running away from explosions can become a blockbuster.