ドンブラザーズ’s full name is 暴太郎戦隊ドンブラザーズ, or Avataro Sentai Donbrothers a tokusatsu TV show made by TV Ashahi.

This series is loosely based on the Japanese tale Momotaro, which tells the story of Momotaro defeating Oni (some sort of ogre) with the help of a dog, a monkey, and a pheasant. The story is widely known in Japan (the level of Snow White or Cinderella), and has a gigantic amount of works of different forms and genres based on it.

Like mentioned in many posts before, viewers of TV shows like to discuss on Twitter while the show is on air under a certain tag. The plot of 暴太郎戦隊ドンブラザーズ this week was quite exciting, which caused the tag trending on Twitter in Japan.

Learn more about Avataro Sentai Donbrothers on wikipedia.