The most recent episode of the Clone Wars (which ended about 5 minutes before I started writing this) was titled "To Catch a Jedi". The episode began with a Jedi Council meeting where Anakin and Plo Koon were sent off with clones to search for Ahsoka. Ahsoka was meanwhile having several brief run-ins with the law when she was met by Asajj Ventress. Ventress is still a bounty hunter, and though at first she was just planning to turn Ahsoka in to those who attacked the Temple, Ahsoka convinced her to help her. After a brief run-in with some clones, Ventress lead her to a warehouse where Bariss Offee had claimed there was some clue. After Ventress left, however, she was knocked out by a mysterious assailant who stole her mask.
This assailant then attacked Ahsoka (who thought that it was Ventress) and in the end, perfectly framed her by putting her in a room with explosive nanodroids just as the clones arrived. Ahsoka was captured and arrested. Anakin must be feeling pretty frustrated because he was hoping to capture Ahsoka and then prove her innocence, but now even though he's sure that she was framed, the proof against her is too much.
The various previews for this episode were kind of confusing because there were two clips of Ventress attacking Ahsoka, one with a cloak on, and one without. But actually the "Ventress" with a cloak on turned out to actually be some mysterious Jedi instead.