MASSIVE SPOILERS FOR LEAKS THAT ARE PROBABLY RIGHT
One year after THE LAST JEDI. The First Order has conquered most of the galaxy. Kylo Ren is still torn between the dark side and the light and still harbors feelings for Rey. Hux has been replaced by Allegiant General Pryde (Richard E. Grant) and has been leaking information to the Resistance in hopes that they kill Kylo and allow him to retake control. The Knights of Ren return from an expedition to the Unknown Regions to inform Kylo about a secret arsenal of superweapons built by Palpatine. Kylo and the Knights of Ren begin searching for the Wayfinder, a device required to locate the arsenal. The Resistance learns about this and deploys Rey, Finn, Poe, Chewbacca, BB-8, C-3P0 and R2-D2 to retrieve the Wayfinder first. Rose is now a high-ranking Resistance commander answering directly to Leia and stays behind to coordinate them from the base. The Wayfinders coordinates are in C-3P0s old memory unit in an abandoned Imperial blockade in a jungle world, where the heroes befriend the warrior Jannah (Naomie Ackie) and her people. After retrieving it, the heroes to a decommissioned droid factory in a snow world to unlock it, where they are ambushed by the First Order and rescued by bounty hunter Zorii Bliss (Keri Russell) and her droid D-0. During the battle, the memory unit of a combat droid is uploaded into C-3P0, causing him to develop an aggressive personality and take Chewies bowcaster for himself. Meanwhile, Kylo meets an oracle who directs him to the Wayfinders location in a desert world. Rey and her friends also learn about it from C-3P0s memories.