Yugi, Jaden and Yusei must travel through time and team up to save a children's card game.

After falling through a time-slip, Yusei Fudo (who has just had his powerful card stolen by a mysterious stranger) meets with Jaden Yuki and Yugi Muto, who agree to help Yusei defeat the evil Paradox, who is planning to destroy Pegasus before he can invent Duel Monsters.—Anime News Network

Yusei is playing card games on motorcycles when a masked man appears and steals his Stardust Dragon. With the power of the Crimson Dragon, he travels back in time to where Jaden is being attacked by the same masked man. The masked man flees, Yusei decides to shun Jaden for the rest of the movie and they head off to Yugi Mutou's time. Yugi and his Grandpa are at the gayest spectacle in the world when they are suddenly attacked by dragons. Everyone but Yugi is killed, and Yugi tries to earn an Oscar before he is transported back in time to about five minutes before the attack. He is introduced to Yusei Fudo, the serious one with the voice that makes the fangirls swoon, and Jaden Yuki, the cute hyperactive one that people want to choke in his sleep. They decide to team up to take down the masked man, who's name is revealed to be Paradox. against all odds the three main characters win, through the power of homo, being main characters, freestyle time and hairy balls. They are about to leave to their respective times, when Jaden gives Yugi a spoiler and all three of them are sent to subspace.—greywolfkin