Out of the blue, monsters usually living beneath the Earth’s surface began to attack the terrestrial world. They were called the Underground Hades Empire Infershia. The Ozu Siblings of Makito, Houka, Urara, Tsubasa, and Kai hear from their mother, Miyuki, that they are the Magicians of Justice to stand against the Infershia. The siblings are perplexed by such an unexpected event. However, without hesitation, Miyuki charges at the Infershia, and the Ozu Siblings are forced to come together to fight as one.

Mahou Sentai Magiranger vs. Dekaranger is the teamup movie between Mahou Sentai Magiranger and Tokusou Sentai Dekaranger.

Kai and the Magiranger travel from the heights of Magitopia to the depths of Infershia in order to save Yamazaki from becoming the bride who releases a Hades Beastman's phantom army!

This DVD features Kai Ozu coming into possession of a Golden Grip Phone while Hikaru attempts to teach the boy the importance of always telling the truth.