It's a series of powerful adventures and events that we live through animation. Strong events begin after the Great Cybertronian War, where autobots and Decepticons landed on Earth. After a long period of time, geological activity may revive the long-standing warring factions. There is a real war where decepticons want to strip the earth of its vast resources of energy, but the autobots seek to protect the inhabitants of the earth from the next real destruction.
Even though the Transformers franchise has now moved way beyond the products, the series holds up well. Yes, the animation is very clunky by today's standards, but the transformation effect never gets old.