Transformers: War for Cybertron is a three-film trilogy coming soon to Netflix, and chapter one got the first teaser trailer this weekend. Titled Siege, it takes us to the closing hours of the Autobot-Decepticon civil war, with both sides considering some rather desperate choices.

Megatron is on the hunt for the Allspark, the Cybertronian MacGuffin that is capable of “reformatting” the Autobots. Optimus Prime must marshal his troops to thwart the Decepticons’ evil plans, using tactics that some find extreme, and extremely risky. It comes down to a fateful call: Should the Autobots destroy Cybertron in order to save it?

There’s no release date yet for chapter one (nor two, titled Earthrise, so you can probably guess where this is headed w/r/t Cybertron). This is the inaugural production for Rooster Teeth Studios, with Polygon Pictures (no relation) serving as the animation studio. F.J. DeSanto, of Transformers: Titans Return and Power of the Primes is the showrunner, with Gavin Hignight (Transformers: Cyberverse) and Brandon Easton (Transformers: Rescue Bots) on the writing team.

Despite their spot-on voices, that’s not Peter Cullen as Optimus Prime or Frank Welker as Megatron. It’s Jake Foushee and Jason Mamocha, respectively. The rest of the voice acting credits name-checks Autobots Bumblebee, Ultra Magnus, Jetfire, Wheeljack, and Ironhide, with Decepticons Shockwave, Soundwave, Starscream, and Skywarp also mentioned, so look for your favorite to show up.