ThunderCats (comics) are held prisoner in Castle Plundarr while Wilykit and Wilykat are the personal servants of Mumm-Ra. This storyline was distinctly more mature than many episodes of the series, with much harsher language such as "bastard" used by Mumm-Ra. Cheetara is depicted as holding a grudge against Lion-O for "abandoning" his friends and leaving her to be abused by the Mutants and WilyKat's corruption in the earlier mini-series takes greater form. Realizing he has betrayed his friends, the older cub flees when the mini-series concludes. Lion-O and the ThunderCats emerge triumphant over Mumm-Ra once again. By the third mini-series, "The Dogs
Cho-Den-O series was to be the first in the Cho-Den-O series. and that the film would feature the cast and characters of "I'm Born!", "Final Countdown", "Kiva", and "Kamen Rider Decade". The first film in the Cho-Den-O series is titled released on May 1, 2009. The film features the return of the Tarōs, Deneb, and Sieg, along with New Den-O from "Final Countdown", Jiro, Ramon, and Riki of "Kiva", and Tsukasa and Natsumi of "Decade". The film also introduces Akina Minami portraying a bushi woman named . The movie also marks the debut of , also called , which appears as a