The following is a list of episodes of the 1980s animated television series M.A.S.K. The series ran for two seasons in 1985 and 1986. No origin episode ever aired. A mini-comic was released with the toys that told the origin of MASK and how Miles Mayhem had a falling out with Matt Trakker and his brother.
References
List of M.A.S.K. episodes Wikipedia(Text) CC BY-SA