After acquiring an encoded map pointing to the location of Grand Admiral Thrawn – and the young Jedi Ezra Bridger – Ahsoka Tano turns to her former apprentice for help, though they have much unresolved history between them.
After Sabine Wren finds a lead on Thrawn's allies Ahsoka joins General Hera Syndulla at the starship construction yards of Corellia, where they suspect some lingering allegiance to the fallen Empire. Meanwhile Sabine must decide where her path will take her next.
While Hera appeals to the New Republic for support Ahsoka and Sabine locate Thrawn's allies above Seatos, where Morgan Elsbeth is attempting to complete an intergalactic hyperspace gate.
Ahsoka and Sabine attempt to stop Thrawn's acolytes from completing the calculations for their hyperspace jump, but must overcome former Jedi Baylan Skoll and his apprentice. Meanwhile Hera defies orders to bring them help.
Ahsoka finds herself in the world between worlds, where her former master challenges her with a lesson she has yet to learn. Meanwhile Hera leads a desperate search for survivors on Seatos, as the Republic sends ships to put a stop to her rogue mission.
As Ahsoka and Huyang make their way to the distant world of Peridea, Sabine comes face to face with the galaxy's greatest threat – a brilliant military strategist who has been building an army.
Ahsoka arrives on Peridea to find the enemy waiting for her, while Thrawn sends his forces to eliminate Sabine and Ezra. Baylan makes a decision about his future, and back on Coruscant General Syndulla must answer for her actions.
As Grand Admiral Thrawn moves to escape his exile Ahsoka, Sabine, and Ezra make a frontal assault on the tower, leading to a desperate clash between the Jedi and the unnatural power of the Nightsisters and the army they have conjured.
