Invizimals

Season 1, Episode 15: Reset

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The Z1 Unit is ambushed in the Atlantis Kingdom and Hiro ends up blowing up the whole universe as a result! However, he goes back in time and discovers that no one remembers what happened. That fragment of the mysterious Invizimal meteorite surely has something to do with it. Will Hiro be able to save the day or will he be doomed to repeat it forever?