Years after being defeated, the deadly Psycho Rangers suddenly return, putting the galaxy in danger once again. Karone is troubled by their return because she helped create them during her time as Astronema. While Andros believes the only way to stop them is to destroy them, Karone searches for another way, hoping they can be changed. As the siblings face the Psycho Rangers, they uncover a mysterious plan behind their return, forcing Karone to confront the darkness of her past and the dangerous enemies she once created.
