Utsusemimaru returned from beach in dismay due to seeing women in swimsuits. Returning to the Spirit Base, Daigo prepared an indoor beach for Utchi to have fun together. Later, they find Nobuharu tamed by the two festival-themed Debo monsters. Daigo first used the Allomerus Zyudenchi and the Ovirapoo Zyudenchi, then Utchi used the Igaranodon Zyudenchi with an old man gag, which Daigo enjoys.
The film opens on Dino Earth fifteen years ago with a village elder telling the story of how Princess Freezia sealed away a pair of evil Bakuryuu with the Holy Sword, encasing them in ice. If the evil creatures are ever released from their prison, the world will end in a grip of fear "encased in white".