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A new monster creates a city-wide blackout and disables the robot; the team must figure out how to get the robot working before the beast can complete its mysterious mission.
Ryan finally gets a lead on his biological father, Randall, only to find him in danger and must race against time to save him.
Ryan and Mark's fun day with their Dad is interrupted when a fighter drone created by Harris is mysteriously reprogrammed to destroy Ryan.
Season 2 of Mech-X4 was announced on September 1, 2016.