AICN has posted a very detailed rundown of the 1st episode of 'Clone Wars: Season 3'. Here's a clip:

The episode begins with quick shots of ARC Troopers on their Attack Gunship gearing up for war, Rambo style. They are undetected as they approach the droid perimeter. After throwing out a few bombs, they run over some Super Battle Droids, alerting the enemy to their presence. The troopers dismount, some with HUGE A** guns that are more T2 or Doom than Star Wars, and walk in on Ki-Adi Mundi fighting General Grievous. They unload on Grievous with everything they have (including the Gunship) but, despite the reservations of Mundi, are forced to leave him to save the ailing Jedi (Shaak-Ti and Aayla Secura) These are the only two Jedi left from the Episode 20 massacre. Grievous picks up a lightsaber, puts it on his belt, and as the Troopers clear a path thru the droids to escape, Grievous warns them. “Run Jedi Run, you have only prolonged the inevitable.”

Click on the link above to read the full episode. NB, there's some strong language at the site. Thanks to Germain for the alert.

Clone Wars Season 3, aka Volume 2 starts March 21st on Cartoon Network in the US and Toonami in the UK.