武捜戦隊サイレンジャー 前編

The Kamen Rider Club discovers that the Dai-Zangyack fleet is moving towards Earth, led by Captain Marvelous as their Great Emperor. With many revived Super Sentai villains under his command, Captain Marvelous plans to obtain the Great Power of the Kamen Riders which is said to be "Ultimate Treasure in the Universe". Meanwhile, Tsukasa Kadoya becomes the Great Leader of Dai-Shocker once again and recruits past enemies of the Kamen Riders to take down the Super Sentai teams.

Divided into three acts, the first act is about the Zenkaigers dealing with a new Kashiwa Mochi World and Zocks declares himself as "Kashiwa Mochi King", the ruler of Zenkaitopia?! In the second act, it's been a year since Taro left and the five companions continue to fight as a team with Jiro as their leader. Taro later regains his memories, only for his companions to ask him to leave the Donbrothers. In the final act, an incident caused the two worlds to connect, thus a full-throttle miracle battle between the two Super Sentai begins!

The film consists of re-edited material from the original television series Ultraman. Episodes 1, 8, 26, and 27 were used for the film. They were narrated by Hikari Urano as an "Ultraman Documentary". Allegedly only one new scene was shot, and that some parts of the movie where shot in black and white for unknown reasons. The movie screened at the same time as the Toho movie King Kong Escapes.

A group of archaeologists open a tomb that awakens horrible monsters, while journeyman Yusuke Godai is compelled to access a strange belt from the tomb to fight back against them. Also, a drunkard witnesses a murder by an unidentified lifeform near a church. Meanwhile, Yusuke is bothered by the idea of fighting and is unsure if it was right until he saw the daughter of one of the slain archeologists crying, making his reason to fight "to protect the smiles of people". This is the director's cut version of the first two episodes of the Kamen Rider Kuuga TV series.

On January 2nd, Yusuke Godai prepares the Pole Pole cafe for opening, reflecting on the events of the prior year's battles he's had as Kamen Rider Kuuga against the Grongi. This special serves as a clip show and is also referred to as episode 46.5

The story begins with a regular day with Takumi, Mari and Keitaro, which suddenly turns into a musical number thanks to a mysterious new boom box created by Smart Brain. As it turns out, Yuji, Yuka and Naoya have the same boom box and are greeted by a rapping Smart Lady who reveals that it's part of a new plan by Smart Brain to invoke people into singing all over Japan. The reason: To get the three Rider Belts back!

Shouichi encounters his old friend and caretaker Dr. Higashi Kunieda. Dr. Kunieda, a friend of Yoshihiko Misugi, took care of him while he was hospitalized with amnesia. After catching up on a year of separation Shouichi abruptly leaves to house to fight an Unknown as Agito Burning Form. Unfortunately, after the Unknown flees Shouichi loses control of himself and attacks Dr. Kunieda, who followed Shoucihi and watched him transform. Dr. Kunieda managed to calm him down but Shouichi becomes to afraid of himself and runs away.

A Trial-series cyborg pretends to be Kenzaki (Kamen Rider Blade), who quickly discovers the fraud and fights him. During their battle, the other Riders bicker humorously about which Blade is the fake, which constantly results in their attacking the real Kenzaki. As with all Hyper Battle Videos, this serves to explain in detail the Rider's various powers and abilities.

Having finally taken the burden to becoming the true OOO, Eiji fights to prevent Doctor Maki from realizing his "perfect end" while working to reach his ultimate desire of being there for others and having others be there for him.

The spirit of Kiba the Dark Makai Knight influenced everything since the beginning. Though he called himself a Makai Knight, Kiba was no different to a Horror. Kiba's spirit resides inside what was once a grey colored Makai Armor that's filled with the dark knowledge of Makai Power. As Barago absorbed Horror after Horror, Kiba eventually deformed into an organically pure black armor with a cape. Kiba assumed full control over his host upon Meisha's defeat by Kouga.