The battle for Mon Calamari rages on in "Prisoners," the conclusion to the three-part season opener of "Star Wars: The Clone Wars" airing at 7 p.m. Sept. 23 on Cartoon Network.

Here's what LucasFilm has to say about the episode: "All appears lost as the Republic army and its allies the Gungans have been captured by Riff Tamson and his seemingly invincible Karkarodon forces. The future looks as murky as the turbulent undersea battlefields of Mon Calamari, but there still are holdouts. Now all depends on Ahsoka Tano helping young Prince Lee-Char find the internal strength to unite the fractured races of his planet to drive out the Separatist invaders in a pulse-pounding battle."