Optimus Prime went into space with his upgraded truck, found his planet, and looked for the All Spark (Chronos). Back on Earth the primes were being watched by Decepticons. Later on, all the evil, little Decepticons were watching the Primes secretly, like in building, human cars, and trucks. What the Primes didn’t know was that all the defeats of the Decepticons were all part of the plan since day one. The Chaigo defeat was a plan to import the brainwash liquid so all humans would turn against the Primes and accept the Decepticons as the one, powerful leader.