With the fate of Bay City hanging in the balance, Ryan and the team fight to end the monster threat once and for all.
The guys and MECH-X4 evade the authorities while trying to fight a monster unlike any other before.
With help from his team and a dangerous new technology, Ryan goes on a mission into the mind of his enemy.
On the robot's first ever deep sea mission, Ryan and the team discover the terrifying truth behind the monsters.
As Harris' experiment at the science fair goes haywire with potentially explosive consequences, the school's MECH-X4 fan club threatens to reveal Ryan's secret identity.
The team follows clues to Leo, the creator of MECH-X4, to his last known location and find themselves under attack from a prototype version of MECH-X4.
Ryan's inner turmoil over a shocking personal revelation causes his power to short circuit, endangering the city.
Ryan and the guys reluctantly join forces with an enemy to try and defeat a greater threat.
Ryan and the team must rescue Mark and reclaim their robot before it's destroyed.
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.
Harris convinces Ryan to join a skate competition; an upgraded flying Jaguasaur is deployed to lure the team and MECH-X4 into action.
Ryan uses his technopathic powers to access a powerful laser for the team to use and crack open the captive monster's heart.
When an ooze-infected Harris starts turning into a monster, the team goes on a mission to find a cure.
When monsters descend upon the Bay City High, Ryan enlists his two best friends, Spyder and Harris, and his brother Mark to help him operate MECH-X4 and save their school.