Tournament of Elements is the fourth season of the animated television series Ninjago: Masters of Spinjitzu. The series was created by Michael Hegner and Tommy Andreasen. The season aired from 23 February to 3 April 2015, following the third season titled Rebooted. It is succeeded by the fifth season, titled Possession.

Rebooted is the third season of the animated television series Ninjago: Masters of Spinjitzu. The series was created by Michael Hegner and Tommy Andreasen. The season aired from 29 January to 26 November 2014, following the second season titled Legacy of the Green Ninja. It is succeeded by the fourth season, titled Tournament of Elements.