In Justice League: The Flashpoint Paradox, The Flash travels back in time to prevent his mother's death, which caused his father to be wrongly convicted of her murder. However, upon returning to the present, he finds that the timeline has been drastically altered. Thomas Wayne is Batman instead of Bruce Wayne, and he is a much more brutal and violent version of the character. Aquaman and Wonder Woman are at war, and the world is in chaos.
The Flash learns that his actions in the past have caused a ripple effect that has changed the entire world. Superman is nowhere to be found, and Cyborg is the only member of the Justice League that still exists in this new timeline. The Flash seeks to restore the timeline to its original state, but he is hindered by the fact that he cannot remember how it was before.
As The Flash races to fix the timeline, he teams up with Thomas Wayne's Batman and Cyborg, who help him to track down the villain responsible for the altered timeline. The trio must fight their way through a world that is vastly different from their own, as they work to prevent a disaster that could cripple the entire universe.
Ultimately, Justice League: The Flashpoint Paradox is a thrilling journey that shows the consequences of messing with time, and the sacrifices that must be made to set things right. With action-packed fight scenes, complex characters, and a thought-provoking storyline, this movie is a must-watch for fans of the DC Universe.