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Official Site: Marvel

Next Avengers: Heroes of Tomorrow is a direct-to-video animated film. It is fifth in a series of animated films from Marvel Animation, based on Marvel Comics by Lions Gate Entertainment. It was released on DVD and Blu-ray on September 2, 2008. The project was originally announced under the title Teen Avengers and later changed to Avengers Reborn. It was then referred to as Next Avengers before being given its full title. The title is also a reference to "A-Next" (Avengers Next) were a similar team of Avengers children set 15 years in the future in a line called MC2. A preview of the film (under the Avengers Reborn title) was included on the DVD of the Doctor Strange: The Sorcerer Supreme animated film. It is the first of the Marvel animated films to be rated PG as opposed to PG-13.

A battle with Ultron leaves The Avengers defeated, with the heroes killed during the fight, and the world at the mercy of Ultron's machine army. Iron Man is told by Captain America to take the Avengers' children to a fortified refuge hidden above the Arctic Circle. The children's are James Rogers (son of Black Widow and Captain America), Henry Pym Jr . (son of Giant-Man and Wasp), Azari T'Challa (son of Black Panther and Storm), and Torunn (daughter of the absent Thor and Sif).

Stark secretly raises and trains the children for 12 years. One day, The Vision arrives at the refuge after hiding for over a decade from Ultron. He has come to inform Stark that "The Boy" is alive.

While the curious children are eavesdropping on Stark and The Vision, James accidentally activates a series of Iron Man-style robots, called the Iron Avengers, that mimic the looks and abilities of Captain America, Hawkeye, Black Panther, Thor, Black Widow and Giant Man. Because they are programmed to defeat Ultron upon activation, they take off to do so, whereupon they are detected by Ultron's worldwide sensors, revealing the location of the refuge. Easily defeated by him, Ultron then reprograms the Iron Avenger robots to follow his commands, proceeds to the refuge and invades it. Stark, now dressed as Iron Man, is able to stall Ultron long enough for the children to escape, but he is eventually subdued and captured.

Next Avengers has not been a contender in any CBUB matches.