"Chapter 18" represents the eighteenth installment of the animated television program Star Wars: Clone Wars. It is the eighth episode featured within Season Two, and also the eighteenth episode contained within Volume One. Genndy Tartakovsky served as the director for this episode, which was initially broadcast on Cartoon Network on April 6, 2004.

Anakin Skywalker and Asajj Ventress persist in their lightsaber fight throughout the Yavin 4 jungle, employing the Force to throw entire trees at one another. Skywalker succeeds in taking away Ventress' weapon, but she jumps into the trees, with her lightsabers following soon after. The fight moves them high into the trees, branches and vines of Yavin. Ultimately, they leave the plant life and Skywalker trails Ventress to the top of a Massassi temple. Ventress throws rocks and building material at him, then uses Force-pushes to send Skywalker across the ground. His clothes ripped and worn, Skywalker rises and confronts his adversary. As the rain intensifies, the two warriors remain still, lightsabers prepared.