Tenkai Knights (Japanese: テンカイナイト, Hepburn: Tenkai Naito) is a 2014 Japanese-Canadian mecha anime series based on a toy line by Spin Master, produced by Shogakukan-Shueisha Productions, Spin Master Entertainment[1] and TV Tokyo and animated by Bones.

The series officially aired on Cartoon Network in the United States on August 24, 2013 and in Canada on Teletoon on September 28, 2013.

Eons ago, a cube–like peaceful planet named Quarton is populated by the Tenkai, robots who could shape–shift into living bricks.

Now on planet Earth in the year 2034 within Benham City, four young teenage boys, named Guren Nash, Ceylan Jones, Toxsa Dalton, and Chooki Mason, find an interdimensional portal to Quarton where they are chosen by Boreas of the Guardians to become the new generation of Tenkai Knights and prevent Lord Vilius and his Corrupted Army empire from taking control of both worlds.

The series first aired in the United States on the cable TV channel Cartoon Network on August 24, 2013, at 7:30 am, and in Canada on Teletoon on September 28, 2013.

To coincide with the launch of the property, Spin Master and Kickstart Entertainment produced a 10-episode prequel web-series entitled Tenkai Knights Origins.

The series features music by John Majkut and was released onto YouTube as well as the brand's official website between September and December 2013.

[10] The series was not released in English, though a French edition was published by Kazé in a four-volume 48-page color comic book format.

[12] In Japan, Happinet and Victor Entertainment released the entire series over four DVD box sets between August 2, 2014, and May 2, 2015.

[14] On January 30, 2014, Namco Bandai Games announced a video game entitled Tenkai Knights: Brave Battle (テンカイナイト ブレイブバトル, Tenkai Naito Bureibu Batoru) for Nintendo 3DS, released in Japan on September 25, 2014, and in North America on October 7, 2014.