After Mike goes rogue in battle, Mentor takes Mike's Samuraizer away until he learns a deeper lesson about the nature of the Green Ranger's Symbol Power.

A traveling fisherman named Antonio arrives and claims to be the sixth Samurai Ranger.

With Jayden kidnapped by Deker, the other Rangers must summon the strength to fight a mutant Nighlok without their leader.

The Rangers struggle to find a way to defeat a Nighlok with an apparently indestructible shell without the help of Antonio, who has unknowingly lost his Samurai Morpher and cannot be reached. Meanwhile, Bulk and Spike find Antonio's Morpher, but think it's a phone that they must return to the original owner.

With Master Xandred back on Earth, the Rangers finally attempt to use the Sealing Symbol to stop him - only to discover that he has a special new defense against it. Now, they must rise to the challenge and find a new way to defeat him and save the world.

In a climactic battle, the Rangers face off against Master Xandred for the last time.

As the Rangers learn that concentration is essential to perfecting their Ranger skills, they are distracted by a civilian falsely claiming to be a Ranger.

While the Rangers are unsure about how to work with the newly-arrived Robo Knight, Vrak captures the robotic Ranger in an attempt to reprogram him for his own nefarious purposes.

When a shadow-stealing monster attacks, the Rangers must teach Robo Knight the power of teamwork in order to defeat him.

When the Armada sends down X Borg platoons after X Borg platoons, the Megaforce Rangers have their encounter with the Silver Ranger even when they are facing off against Gorgax.

When the Legendary Megazord is damaged in a fight against Desolar (who is stealing the happiness from humans in order to cure Prince Vekar's cold), Emma uses unconventional methods to defeat this unusual monster.

The Rangers are lured away from Earth and into Corinth by Professor Cog who locks the wormhole to Corinth. While the Rangers work to tame the Turbo Falcon Zord, Professor Cog and his Grinders attack Earth and runs into competition in the form of the Armada. The Rangers must find a way to tame the Turbo Falcon Zord and find a way back to Earth to stop Professor Cog.

Emperor Mavro launches an attack on Earth by calling all Armada forces across the galaxy to drop what they are doing in their positions and head to Earth. He also sends Levira to fight the Rangers in order to redeem herself for the death of Prince Vekar and Vrak and to make up for Damaras' failure.

When The Emperor nearly defeats the Rangers after a massive attack, the Rangers get help from Legendary Rangers from the past.