The Hidden Enemy

"Truth enlightens the mind, but won't always bring happiness to your heart." ―Moral "The Hidden Enemy" is the sixteenth episode of Season One of the Star Wars: The Clone Wars television series. It serves as a prequel to The Clone Wars movie.

Plot: Anakin, Obi-Wan and their clones prepare to ambush the advancing droid forces from two towers. Just as they are about to fire on the droids, the advances split into three columns and droids suddenly appear in Obi-Wan's building. Anakin calls in a gunship for immediate evacuation before leading his squad to assist Obi-Wan. They escape to the roof, and the droids follow them. Their gunship arrives, picking them up, but not before taking the command tactical droid's head to find out how the Separatists discovered their plan. At the base, Rex and Cody analyze the droid's memory, but the best they can find is that the Separatists discovered their position ahead of time. Obi-Wan suggests that they may have a spy in their ranks. The Jedi decide to go behind enemy lines to investigate, while Rex and Cody sweep out the base. As the Jedi leave, Cody notices that someone left his comlink on, meaning the spy was eavesdropping on them. They spot someone running off and chase him. Unfortunately, they lose him in the mess hall, among their many brothers, meaning that one of the clones is a traitor. They decide to contact the Jedi. Unfortunately, the droids are keeping the communications jammed. Commander Cody and Captain Rex examine a severed tactical droid head. As Anakin and Obi-Wan race to the Separatist base on BARC speeders, they notice an increasing number of droids spying on them, but still decide to continue the mission, despite the fact that it has been compromised. They arrive at the enemy base and inside, they meet Asajj Ventress again and begin to duel with her.Rex and Cody have R2-D2 analyze the communication history, to find out if anyone had sent out any unauthorized transmissions. Rex notices an irregular wavelength that is too low and infrequent for them to normally detect. The transmission seems to be coming from a clone's barracks, so they decide to investigate. They question all of his men: one clone was cleaning his weapon, two were in the mess hall, and another was in the infirmary. The last one, appears that he is hiding something, and reluctantly reveals that he was collecting droid fingers, which is forbidden by protocol.He denies being a spy, and a clone offers a full investigation when the Jedi come back. However, he snaps that from his hiding place, he saw him turn into the command center rather than the mess hall. Cody also notes that he somehow knows about the Jedi's departure, while only Rex and Cody knew about it.Knowing he's been discovered,he punches Cody and Chopper, and escapes.Cody and Rex try tracking him, but they are too late: he blows up many of the gunships and AT-TEs, as well as the weapons depot, with earlier-placed charges. The other clones inform Cody and Rex that he went into the command center, and they order the others to secure the perimeter while they go inside. Meanwhile,the Jedi manage to overcome Ventress and demand her surrender, but as they edge closer to capture her, she creates a large hole in the floor beneath their feet, pushing them one level down. Ventress taunts them and runs away, and the Jedi follow her, discovering that she has set up a whole army to invade Christophsis. The Jedi engage Ventress again. Rex and Cody enter the command center in search of the traitor. They look up at the vents (where he is hiding) and inconspicuously act out a scene. Cody leaves his blaster on the table while Rex goes to "secure the lockdown". He comes down from the vents and grabs Cody's blaster, only to find that it is empty, and Rex comes up from behind him and puts his blaster at his head. He engages the two commanders in physical combat, stating that he was tired of all the suffering and was offered freedom and money from Ventress. Cody manages to knock him out and they apprehend him. As they present him before the Jedi, the latter ask why he would betray his brothers; he snaps that his brothers are enslaved by the Jedi, that he was striking a blow for all of them and that he loves his brothers, but they are too blind to see it. Cody and Rex reprimand him that if he truly loved his brothers, then he wouldn't have put them at risk. Cody orders the other clones to take the traitor to lockup. Obi-Wan asks if they managed to salvage anything from the weapons depot. Rex says that though most of their weapons are trashed, they managed to save the heavy cannons, which will prove to be useful in the coming battle.