The 178th issue of Figure-Oh featured the plot summary of the much awaited Tokumei Sentai Go-Busters vs. Gokaiger the Movie. The plot reveals why Gai is missing and why the Gokaigers return with a black Gokai Galleon.
There's an old legend about 5 mysterious keys. Once these five keys are gathered, one can find the Greatest Power in Space. The Gokaigers, who left Earth to destroy Zangyack, are now back on Earth with a black Gokai Galleon, the sail even has a Zangyack emblem.
The original red Gokai Galleon was destroyed in Zangyack's home planet and our heroes are now working with Zangyack. The Go-Busters realize they have to fight the evil Zangyack and the Gokaiger crew. As they fight, the Gokaigers Gokai Change in both Goggle-V and Timeranger.
The Go-Busters manages to capture Navi, and they find out that the Vaglass are also working with Zangyack. They are also told that they have to travel back in time. Thus Yoko and J head back to the Edo Era.
There they meet Rat Boy (Nezumi Kozo) a Japanese thief and folk hero. Turns out that Rat Boy is actually Gai! Gai informs them that he's there to help them, and since they are the 36th Super Sentai they have to show Gai some more respect.
Tokumei Sentai Go-Busters vs. Gokaiger the Movie will be released this January 19, 2013 in Japan.
Source: Henshin Justice
