In Europe, two American high school students and crimefighters, Kim Possible and Ron Stoppable, have just thwarted the plot of Professor Dementor, and rescue his captive Dr. Glopman.
As they start their first day of school, they meet a new student named Athena and bring her on their mission to stop the plot of the evil Dr. Drakken. Later, Athena defeats Shego and Dr. Drakken, making her the sensational topic of Middleton High School, while Kim deals with personal issues and limitations as a teen crimefighter.
When the school honors Athena and her good deed, Shego and Dr. Drakken barge in to the ceremony. Kim tries to defeat Shego and her army of henchwomen, but in doing this, Kim falls to the ground, leaving Athena vulnerable to be captured and is taken away. Meanwhile, Kim is laughed at and gets brought down. After a talk with her family and Ron, they decide to get Athena out of Drakken and Shego’s lair.
At the lair, Kim finds out that Athena is part of Drakken and Shego’s plan, which is to steal Kim’s motivational essence and transfer it into Drakken with his brain modulating device. Athena is also revealed to be a built by Drakken. As Kim shorts the transfer machine, Dr. Drakken is turned into a version of himself as a side-effect. With the machine now unstable, Athena stays behind to turn it off despite Kim’s insistence that she leaves with them and save herself. The lair explodes and Athena is presumably killed. It is later revealed that Athena has survived the explosion, but her robotic parts are scattered. The team takes her home to be repaired and programmed to be a hero alongside Kim and Ron.
During the credits, Dr. Drakken enrolls at Kim’s high school posing as a gifted student middle school with Shego posing as his mom. He starts to begin his plan to personally defeat her once and for all
On February 7, 2018, it was announced that a live-action film based on the animated series was in the works at The series’ creators and return to serve as executive producers. Josh Cagan, Zanne Devine, , and also serve as executive producers.] On April 25, 2018, it was announced that the film would go into production in summer 2018 for a 2019 premiere.The film is a production of Middleton Productions.On December 7, 2018, it was announced that the film would premiere on Disney Channel and on February 15, 2019On April 25, 2018, Sadie Stanley and were cast in the film.On May 25, 2018, it was announced that Taylor Ortega, Ciara Wilson, and were cast in the film.On June 22, 2018, it was announced that star Issac Ryan Brown was cast in the filmOn August 11, 2018, it was announced thatwere cast in the filmn January 14, 2019, it was announced that