Ryan Walker mysteriously awakens MECH-X4, a giant robot built to defend Bay City against impending doom. When monsters begin to descend, Ryan recruits his two best friends and his brother to help pilot the robot that is their only hope of saving their town from mass destruction.
Ryan's attempt to fit in at his new school is interrupted when the team must stop a superpowered enemy.
Ryan and the guys take MECH-X4 to the depths of the Bay to try and recover the terrifying monster heart.
When an ooze-based zombie virus infects the students of East Bay City High, Harris must team up with his science rival Veracity to figure out an antidote to save their school.
Ryan is bombarded by visions of Harper and the threat of the evil tycoon still being alive.
Ryan finally gets a lead on his biological father, Randall, only to find him in danger and must race against time to save him.
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 and Mark's fun day with their Dad is interrupted when a fighter drone created by Harris is mysteriously reprogrammed to destroy Ryan.
The team battles a new mysterious enemy, Traeger, who catches them off guard with an unimaginable power.
Veracity attempts to give MECH-X4 a flight mode for their next mission, but something goes terribly wrong.
Ryan Walker, a freshman at Bay City High, has technopathy – the extraordinary ability to control technology with his mind. His talent mysteriously awakens the giant robot, MECH-X4.
When an ooze-infected Harris starts turning into a monster, the team goes on a mission to find a cure.
Ryan uses his "technopathic" powers to access a powerful laser for the team to use and crack open the captive monster’s heart.
Harris convinces Ryan to join a skate competition, meanwhile, an upgraded flying Jaguasaur is deployed to lure the team and MECH-X4 into action.
Principal Grey sets a trap for Ryan, Harris and Spyder while they’re on a camping trip, which leaves MECH-X4 and Mark in danger.
The team must rescue Mark and save MECH-X4.
Now considered a danger, the guys and MECH-X4 must dodge authorities while trying to fight a monster unlike any other before.