These are the first three episodes of the new Transformers series. Although the animation makes it look like a juvenile show, there are many references and in-jokes that only adults and G1 fans would actually understand.
The story is basically introducing our main heroes and villians after the Great War. The Autobots have won and the Decepticons are scattered thoughout the galaxy. We see Optimus, Prowl, Bumblebee, Ratchet, and Bulkhead as grunts, working to maintain the space bridge network. After finding an object and battling with Megatron, they end up on 22nd-century Earth.
After they arrive, they meet 8-yr. old Sari Sumdac, who helps them with her special key and spunky personality against a certain Decepticon. Along the way, she helps them adapt to Earth culture, and becomes an integral part of the team.
As the Autobots adjust to their new life, we get to see them evolve into better (and sometimes brasher) 'bots, who learn to appreciate their new home with its array of "organics". This all leads into the first full season of Transformers: Animated.
If you can get past the new animation style and keep an open mind about some of the other changes, you'll certainly enjoy this new series of adventures with old friends.