Iden Versio is captured by the Rebel Alliance and interrogated for the codes to unlock an Imperial transmission aboard a Mon Calamari Star Cruiser. She activates her droid, Dio, which sneaks to her cell and frees her; Iden had allowed herself to be captured in order to erase the Imperial transmission, which would reveal the Emperor’s plan to ambush the Rebels at Endor. She successfully erases it, then escapes the ship by launching herself into space, whereupon she is intercepted by the Corvus, Inferno Squad’s flagship. Aboard the Corvus, Iden confirms the mission’s success to fellow squad members Del Meeko and Gideon Hask.
Later on Endor, Inferno Squad secure the perimeter around the shield generator protecting the Death Star II, which was destroyed by a Rebel squad, and watch with shock and horror as the Death Star II explodes moments later. Vice Admiral Sloane orders a full retreat, and Inferno Squad escapes the moon aboard TIE fighters before it is overrun by Rebel forces. After destroying a squadron of Rebel starfighters around the Death Star II’s ruins, Inferno Squad arrives on Admiral Garrick Versio’s Star Destroyer, the Eviscerator, where he informs Iden of the Emperor’s death. A messenger droid then displays a hologram of the late Emperor issuing his last command: to initiate Operation: Cinder. Admiral Versio sends Iden and Hask to an Imperial shipyard over Fondor to protect Moff Raythe’s Star Destroyer, the Dauntless, which hosts experimental satellites vital to the success of Operation: Cinder. The Dauntless comes under attack from a Rebel Star Cruiser, but Iden and Hask manage to board it and destroy its ion cannons, before freeing the Star Destroyer, allowing it to open fire on the Cruiser and destroy it.
Meanwhile, Del arrives on Pillio to destroy one of the Emperor’s hidden bases. He encounters Luke Skywalker, who helps him fend off the local wildlife and gain access to the base, discovering it contains the Emperor’s spoils of conquest, one of which Luke claims for himself. The pair part amicably, as Del begins to question the Empire’s goals and motives. Later, Inferno Squad are sent to Iden’s homeworld, the Imperial-controlled planet Vardos, to retrieve Protectorate Gleb, just as Operation: Cinder is about to begin. After witnessing the satellites for Operation: Cinder slowly destroying Vardos with storms, Iden and Del, disillusioned by the Empire’s actions, abort their mission to try to evacuate civilians, causing Hask to betray them. The pair return to the Corvus and make their escape, now traitors to the Empire. Seeking out the Rebel Alliance, they meet General Lando Calrissian, who gives them the choice of helping stop Operation: Cinder, or escaping to start new lives. Choosing to help, they aid Leia Organa in protecting Naboo, destroying the satellites for Operation: Cinder and reactivating the planet’s defenses. After Naboo is liberated, Inferno Squad joins the New Republic.
Months later, Inferno Squad – Iden, Del, and Shriv Suurgav – is sent to Takodana to find General Han Solo, who has gone missing during his mission to extract critical data from an Imperial defector that can help liberate Kashyyyk. After Solo and the defector make their way past a squad of stormtroopers and back to the Millennium Falcon, Inferno Squad arrives to help them flee the planet. The recovered data reveals that Admiral Versio is commanding Imperial operations on both Bespin and Sullust. On Bespin, Iden and Del attempt to capture the Admiral, but are led into a trap by Hask. The pair escape, destroying a Star Destroyer fueling station in the process. On Sullust, Lando and Shriv investigate a hidden Imperial weapons cachet and find a weapons factory instead, which they destroy.