Chapter 14 is the fourth episode in Season 2 of the Star
Wars: Clone Wars animated television series. The episode originally aired
on Cartoon Network on March 31, 2004.
On the icy planet of Ilum, inside a sacred Jedi site, Jedi Master Luminara Unduli is supervising the ritualistic creation of a lightsaber by her Padawan, Barriss Offee. Using crystals from the cave, Barriss finalizes her lightsaber, sealing the completed device up.
Her exultation is short lived, however, as Luminara, through the Force, senses something is amiss. Cloaked Separatist chameleon droids have infiltrated the cave, in an attempt to destroy a site necessary for the Jedi war effort.
Although they manage to stop the droids from entering the crystal-laden part of the cave, the Jedi precipitate a cave-in, sealing themselves inside. However, help is nearby—Yoda, near Ilum on the royal yacht of Padmé Amidala, feels them through the Force, and states that they must go to Ilum to save the Jedi.