Star Wars: The Clone Wars - Season 4 Episode 15 -

"Deception" Obi-Wan fakes his own death and goes undercover (as Rako Hardeen) in a Republic prison, in order to gather information on a plot to kidnap Chancellor Palpatine from a convict named Moralo Eval. While there, he learns that another prisoner, notorious bounty hunter Cad Bane, is also involved. Meanwhile, Anakin seeks vengeance over the death of his former master.