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.

Halloween is every Nighlok's favorite day of the year so the creepiest creatures from the Netherworld are just dying to get into the scariest party ever and trade war stories about their battles with the Samurai Power Rangers.