Republic Commando: Triple Zero is the second novel in the Republic Commando series written by Karen Traviss and set one year after the First Battle of Geonosis. It tells the story of Omega Squad, Delta Squad, a unit of Null ARC troopers, and their Jedi Generals Etain Tur-Mukan and Bardan Jusik as they pursue a Separatist terror group along the skylanes and underworld of Coruscant, known to clone troopers as Triple Zero for its galactic chart coordinates.
The book contains a short glossary defining Star Wars, Mando’a, and military terms. The Del Rey printing also contains the short story Omega Squad: Targets, originally published in Star Wars Insider #81, and a preview of Legacy of the Force: Betrayal. The UK and Australian release printed under the Orbit imprint includes the Mando’a glossary, however does not include Omega Squad: Targets or the preview of Betrayal.