This episode looks to be very dark. One of the best things this show has done over the years is show us Anakin’s slow slipping to the dark side. Losing his master (as all the trailers have intimated) would do more to cause than anything I can imagine short of the events of Episode III.
From the press release:
When the Jedi learn of a Separatist plot to kidnap Chancellor Palpatine, one of them must go deep undercover as a hardened criminal to extract information from the conspirators. To alleviate all suspicions and fit seamlessly into a high security Republic prison, a Jedi must die! But not everything is what it seems in The Clone Wars. Witness the “Deception” – an all-new episode – which features the return of the series’ most memorable villains behind bars: Cad Bane, Boba Fett and Bossk, airing at 8:00 p.m. ET/PT Friday, January 20th on Cartoon Network.