The Justice League must stop the Fatal Five, a team of supervillains from the future who are attempting to free the Time Trapper and change history. With the help of new members, Miss Martian and Star Boy, the Justice League fights to save the world and prevent the devastation caused by the Fatal Five.

The Justice League faces its greatest challenge when an alien race threatens to destroy Earth. With their powers combined, the superheroes must find a way to save the planet and protect their loved ones.