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.