Treecat Wars consists of a total of 22 chapters, followed by a short glossary titled "Notes".
Chapter One Edit
Sphinx Forestry Service provisional rangers Stephanie Harrington and Karl Zivonik learn that Chief Ranger Shelton intends to send them both to an accelerated three-month training program on the planet Manticore. Stephanie will be allowed to go even though she is not an adult yet, and also receives permission to take her treecat companion, Lionheart, with her. Stephanie accepts, but worries how her long absence will impact her blooming relationship with Anders Whittaker.
Lionheart, whose true name is Climbs Quickly, senses the emotional turmoil of his two-leg bonding partner, calms her down through their telepathic link, and leaves her to discuss her problems with Karl on the way home.
Chapter Two Edit
After informing her mother about the Chief Ranger's offer, Stephanie meets with Anders.