Mike figures out the hard way what it means to be a Samurai Ranger after a Nighlok attacks him and his friends.

Struggling to master a secret power disc, Jayden foregoes a trip with the others to an amusement park where the rest of the team encounters the evil Nighlok Dreadhead.

When a Nighlok who uses insults as a physical weapon attacks the Rangers, only Emily is unaffected. To help her teammates, she explains how difficult events in life become an opportunity to grow stronger.

Kevin is assigned the crucial task of catching the elusive SwordfishZord in order to save the other Rangers who have been incapacitated by the stench of the Nighlok Yamiror's breath.

A Nighlok uses mind control powers to force Kevin to fight against his fellow Rangers.

A Nighlok is sent to stop the Red Ranger from using his special power to seal Master Xandred in the Netherworld forever, but their duel is interrupted by the mysterious Deker.

Jayden leaves the Shiba house hoping to keep the other Rangers out of harm's way, but when a powerful Nighlok attacks, Jayden finally accepts the fact that he needs his team to fulfill his role as the leader of the Samurai Rangers.

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

As Antonio attempts to gain Kevin's respect as a true Samurai, Octoroo devises a plan to create a stronger portal between the Netherworld and Earth via a secret ancient well.

As invasions from the Netherworld increase, the Red Ranger unites a new team of Samurai Rangers to meet the rising threat.

A body-swapping monster named Tranceferer switches Jake and Noah's bodies while on a mission to swap the bodies of high-ranking people. While Tranceferer continues his mission, the monster Turtlelini is sent down to distract the Rangers causing Jake and Noah to handle fighting in each other's bodies.