List of Bakugan: Mechtanium Surge episodes

Bakugan: Mechtanium Surge
Poster for fourth season of Bakugan: Mechtanium Surge series
Country of origin	Japan Canada
No. of episodes	46
Release
Original network	Teletoon Cartoon Network
Original release	February 13, 2011 – January 26, 2012
Season chronology
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Bakugan: Mechtanium Surge is the fourth and final season of the Japanese anime television series Bakugan Battle Brawlers. The series originally had 26 episodes ordered, however, Nelvana recently announced that this series will be extended to 46 episodes total in length, with production by TMS Entertainment and Japan Vistec. Unlike the other seasons, Mechtanium Surge is split into two separate stories. The series premiered in Canada on February 13, 2011, United States on March 5, 2011 and Australia on March 8, 2011 on Cartoon Network.

On January 15, 2012 CoroCoro Comics announced that a series was in production which will feature the characters from the BakuTech! Manga. It premiered on April 7, 2012, on TV Tokyo.

The original version of Mechtanium Surge began airing in Taiwan on August 11, 2012 on YoYo TV every Saturday; also, this program began airing in Hong Kong on October 25, 2012 on TVB every weekday. Taiwan aired the original version of New Vestroia six months before Japan. The TW/HK version of Mechtanium Surge uses the original Japanese score, but the opening theme audio is "Cho! Saikyou! Warriors" which is New Vestroia's OP (and the Gundalian Invaders in overseas version including Taiwan and Hong Kong did the same, except for Japan version). 35 seconds (throughout the whole video) of the TW/HK version opening theme video is that of the original Japanese version, while the rest are scenes from various episodes.

One whole year has passed after defeating Barodius and the Twelve Orders, Dan, Marucho and Shun have managed to rebuild Bakugan Interspace and expand it. The episode begins, with Dan battling two Subterra and Darkus brawlers in Interspace with Marucho and Shun observing the battle. Marucho's new Guardian Bakugan, Aquos Trister, complains about not being able to battle after leaving Gundalia to team up with him. Shun's new partner, Ventus Taylean, tries to tell Trister to be patient but the two end up squabbling. Meanwhile, Dan and Drago are about to finish off their opponents with Dragon Strength but Drago has a vision of a strange Bakugan that makes him miss. But after attacking them once again, he finishes them off with a few blows. After the battle, the Brawlers observe two rival teams battling, Team Anubias and Team Sellon. Ever since they appeared in Interspace, they have become among the top ranked battlers, just below Dan and Drago. Suddenly Team Anubias appears and starts trash talking about the Brawlers, almost to the point of battling each other. However their rivalry is interrupted by a sleazy dealer named Dylan who tries to get them to buy his stuff and cause both teams to leave.