Star Wars: The Clone Wars - Season 3 - Eps 18: The Citadel
With help from R2-D2 and a squad of captured battle droids, an elite team of Jedi and clone troopers led by Obi-Wan and Anakin attempt to free a captive Jedi general, Even Piell, from an impenetrable prison. Despite orders to the contrary, Ahsoka Tano tags along, though she proves indispensable when the infiltration mission begins to evolve. Piell and his fleet officer, Captain Tarkin, are liberated from their cells, but now the fugitives must escape the Citadel itself.
About Star Wars: The Clone Wars

Title: Star Wars: The Clone Wars
First Air Date: 2008-10-03
Last Air Date: 2020-05-04
Status: Ended
Rating: 8.5/10 (from 2106 votes)
Language: EN
Seasons: 8
Total Episodes: 133
Network: Cartoon Network Netflix Disney+
Genres: Action & Adventure, Sci-Fi & Fantasy, Animation
Production Companies: Lucasfilm Animation, Lucasfilm Ltd.
Synopsis
Yoda, Obi-Wan Kenobi, Anakin Skywalker, Mace Windu and other Jedi Knights lead the Grand Army of the Republic against the droid army of the Separatists.
Cast

Ashley Eckstein
Ahsoka Tano (voice)

Matt Lanter
Anakin Skywalker (voice)

James Arnold Taylor
Obi-Wan Kenobi (voice)

Dee Bradley Baker
Clone Troopers (voice)

Tom Kane
Yoda / Wullf Yularen / Narrator (voice)