Four teen boys use a giant robot to protect their city from danger. In the opener, a high school freshman discovers he has the ability to control technology with his mind and his power awakens MECH-X4, a giant fighting robot.

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.

Ryan and the team must rescue Mark and reclaim their robot before it's destroyed.

Ryan and the guys reluctantly join forces with an enemy to try and defeat a greater threat.

Ryan's inner turmoil over a shocking personal revelation causes his power to short circuit, endangering the city.

The team follows clues to Leo's last known location and find themselves facing unexpected threats from a prototype version of Mech-X4.

As Harris' experiment at the science fair goes haywire with potentially explosive consequences, the school's MECH-X4 fan club threatens to uncover Ryan's secret identity.

On the robot's first ever deep-sea mission, Ryan and the team discover the terrifying truth behind the monsters.

With help from his team and a dangerous new technology, Ryan goes on a mission into the mind of his enemy.

The MECH-X4 team sets out to stop the villain's final plan before it can start.

Now considered a danger, the guys and MECH-X4 must dodge authorities while trying to fight a monster unlike any other before.

With the fate of Bay City at stake, Ryan and the team fight to end the monster threat once and for all.

Ryan's attempt to level up at his new school is interrupted when the team must stop a super-powered enemy.

An item of immense power rests under the Bay, as does a terrifying new monster.

Ryan and the team must fight off a zombie horde.

Ryan is bombarded by visions of Harper. If Harper is still alive, Ryan must make a difficult choice: save him, or destroy him once and for all?

Ryan finally gets a lead on his biological father, Randall, only to find him in mortal danger and must race against time (and a collapsing mountain) to save him.

When a new monster creates a city-wide blackout and disables the MECH-X4, the team must figure out how to get the robot working again to stop the beast from completing its 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 has their first real battle with Traeger while Leo is confronted with his past.

Veracity's first mission with the team could be her last when her attempt to give Mech-X4 a flight mode goes terribly wrong.

Ryan and the team take MECH-X4 to the Arctic for an epic showdown with Traeger.

Mark and others find Ryan in the top half of the robot. He is alive but very weak.

Ryan meets more of Leo's technopathy test subjects, including his birth mother.

Grace might relocate the family to Miami.

When the team split apart as Grace contemplates leaving Bay City, Traeger makes his move.

After a successful mission, the team finally gets a little chill time in Mech-X until they find a bomb on the X-Deck!

A traitor on Mech-X4 picks off unsuspecting team members one by one.

Ryan, Spyder, and Veracity attempt to sneak into a hospital to get the materials they need for a secret mission.

Ryan and what's left of his team take on Traeger and a traitor in Brazil.

With the world falling one city at a time, Ryan and the team retreat to the Thirty's secret farm.

A super-charged Mech-X4 races around the world to defeat Traeger's beasts, and Ryan must make one of his toughest decisions yet: save his friend or save the world?