In Europe, American high school students and crimefighters Kim Possible and Ron Stoppable have thwarted a world dominating scheme of Professor Dementor and rescued Dr. Glopman, whom Dementor had kidnapped.
As Kim and Ron start their first day of school, they meet a new student named Athena and take her on a mission to stop the plot of the evil Dr. Drakken. Athena (a skilled bōjutsuka) defeats Drakken's henchwoman Shego, making her the topic of conversation at Middleton High School despite Kim's jealousy. When the school honors Athena and her good deed, Shego and Drakken force their way into the ceremony. Kim tries to defeat Shego and her army of henchwomen but falls to the ground, leaving Athena vulnerable to kidnap. Athena is kidnapped, and Kim is laughed at. After Kim talks with her family and Ron, they decide to rescue Athena from Drakken's and Shego's lair.
At the lair, Kim discovers Athena is part of Drakken's and Shego's plan to steal Kim's motivational essence and transfer it into Drakken with his brain-modulating device. Athena is revealed to be an android built by Drakken, specifically for this. As Kim short-circuits the transfer machine, Drakken is de-aged into a pre-adolescent version of himself. Despite Kim's insistence that she save herself, Athena stays behind to turn off the now-unstable machine. The lair explodes and Athena is presumed killed, but it is revealed that she has survived the explosion. Kim and Ron take her home to be repaired and programmed to be a hero alongside themselves.
During the credits, Drakken, posing as a gifted student with Shego posing as his mother, enrolls at Kim's school and begins his plan to defeat her.
In between working on the first and second seasons of the Kim Possible animated series, creators Bob Schooley and Mark McCorkle had begun writing a script for a live-action film adaptation, which ultimately never came to fruition due to unknown reasons.[4]
On February 7, 2018, it was announced that a live-action film based on the animated series Kim Possible was in production at Disney Channel. The series' creators Mark McCorkle and Bob Schooley served as executive producers, as did Josh Cagan, Zanne Devine, Adam B. Stein, and Zach Lipovsky.[5][6] On April 25, 2018, it was announced that the film would go into production in mid-2018 for a 2019 premiere.[7][8] The film is a production of Middleton Productions.[9][10] On December 7, 2018, it was announced that the film would premiere on Disney Channel and DisneyNOW on February 15, 2019.[11][12]
During its premiere in the 8:00 pm time slot, Kim Possible attracted 1.24 million viewers with a 0.22 rating for people aged 18–49, making it the lowest-rated Disney Channel Original Movie premiere of the last decade until 2021's Disney Channel Original Movie, Under Wraps.[23][24]
Brian Lowry of CNN wrote: "It's all a good deal of fun, bringing the animated show to life while riffing on those conventions. That said, the tone can be a bit uneven, with Stanley nicely turning Kim into a flesh-and-blood girl, while Giambrone's Ron is played much closer to the cartoon version."[26] Petrana Radulovic of Polygon said that the film "keeps the true spirit of the DCOMs many of us grew up with — Wendy Wu Homecoming Warrior, Halloweentown and Zenon: Girl of the 21st Century among them", and added: "Kim Possible is campy and hammers in its message with the subtlety of a sledgehammer, but that's not a critique. It just means that Kim Possible is, like most in the DCOM canon, a fun movie, and little else."[27]
Sabrina Pitre was nominated at the 2020 Canadian Cinema Editors Awards in the category Best Editing in Family - Series or MOW, Live Action for her work on this film.[28]
The film was followed by the miniseries Kim Hushable which aired between June 5 and 24, 2019.[29] The shorts take place after the movie and focus on Kim, Ron, and Athena as they help out in a library during spring break, all while dealing with various rogues and impressing Mr. Dewey. Warhok and Warmonga, who appeared in the original series, make an appearance in the shorts.