While having breakfast, the rangers learn that the Swordfish Zord has been sighted off the coast as the poisonous Nighlock Yamiror appears. While the others go after Yamiror, poisoned as a result, Kevin is sent to acquire the Zord by fishing for it. But after failed attempts to catch it, Kevin receives the aid of a fisherman before being contacted by that the others got poisoned and the Swordfish Zord is needed to cure them. As Jayden slows Yamiror down in spite of the pain from the poison, Kevin finally manages to fish the Zord out with the fisherman's help. After curing his teammates of Yamiror's poison before they change to use the Fire Smasher's 5-Disc Swordfish Cannon mode to defeat the Nighlock, Kevin summons the Swordfish Zord to battle the enlarged mega monster before having it combine with the Samurai Megazord to form the Swordfish Fencer Megazord to destroy Yamiror. As the rangers spent a day at the beach, a mysterious figure who witnessed the rangers' fight with Yamiror walks off into the night.