CAPSULE SUMMARY:
The five fully Morphed Zeo Rangers ride around the outskirts of Angel Grove, on their new Zeo Jet Cycles. Billy & Alpha are credited with their creation. Tommy & his pals take a few laps on the Jetcycles around the lake, enjoying the scenery with these potentially useless toy tie-ins.
Later at the Youth Center, Billy joins his pals in watching Kat play with a dog. Yes, it's as weird as it sounds. Ernie, Lt. Stone, and Bulk & Skull watch on as Kat gives the canine commands, which he obeys. The dog, named Smokey, is Kat's civics project, she presents "Angel Grove's first specially trained rescue dog" to Lt. Stone, for use in the Police Patrol. Smokey chases after a small wagon train and ends up exposing Ernie's burning pizzas in the back room. Ernie's establishment is saved from burning down, thanks to supermutt's specially trained sense of smell for fire & danger. Lt. Stone looks to Bulk & Skull when he says the dog is better trained than most of his recruits. He soon presents Kat with thanks and presents Smokey with the honor of being Sergeant in the new Angel Grove Search & Rescue unit. Bulk & Skull get stuck with giving Smokey a bath.
Just outside of Angel Grove, Klank & Orbus discover a hidden pocket of molten lava just waiting to be tapped. He reports this to King Mondo, but Prince Sprocket takes all the credit. Mondo sends down the Digster, who, with help from some Cogs, begins to drill into the area with the intent of having the magma flow out and destroy Mariner.. err, Angel Grove. Digster (with his little robotic buddy attached to his head) finally gets tired of digging and blasts the lava flow open a bit. Smokey smells this from miles away, so he hops out of his bath and Bulk & Skull give chase on their Patrol Bike. Smokey gets away, B&S report to Lt. Stone that the dog ran off, and when Kat overhears his location near the forest, she plans to find him herself. She goes to the woods alone, and spots the Cogs wandering around near the dormant volcano cave. Kat discovers what the baddies are up to, thanks to Digster's big metal mouth. She Morphs into Pink Zeo Ranger 1, and while searching for Smokey on her Jetcycle (oh forget the city, it's dog-saving time!) she's ambushed by Digster & the Cogs. She's struck by falling blast-debris, and ends up demorphing with a twisted ankle. Kat stumbles off into the woods and manages to hide despite having a neon pink skirt on.
Kat tries to contact Zordon and warn him, but her Communicator was broken in the attack. The Cogs finally find and grab her, causing her to drop one of her Zeonizer bracelets in the commotion. Smokey appears and scares the Cogs up a tree, allowing Kat & the dog to escape. On the Skybase, King Mondo sends order to Digster for him to forget the girl and continue the damned dig! Some Cogs keep searching around, including a few which stomp around a waterfall (none frying out from the wet exposure, oddly). Digster finally gives up and calls them back to the cave, where he gets back to jackhammering the rocks. Kat decides to attach her Communicator on Smokey's collar, and sends him to the Youth Center to find her friends. Smokey, having learned a few tricks from Lassie, understands her and heads for the Juice Bar, giving Billy, Tommy & Rocky the broken communicator. Before they can learn Kat's location from the mutt, Bulk & Skull back the teens up and take Smokey to the Police Station as ordered. Billy returns to the Power Chamber and runs a few scans, while the other four Ranger teens Morph into Zeo and take their Zeo Jetcycles off into the last known area Kat was at. Meanwhile, Bulk & Skull lose Smokey again, who slips away to go rescue his trainer.
Near the caves, the Zeo Rangers find the Pink Jetcycle covered with rubble. Nearby, Smokey recovers the Zeonizer bracelet Kat dropped, and starts to returns it to her. Her calling out to him gains the attention of Prince Sprocket, Klank, & Orbus, who are overseeing the completion of the lava dig. Digster fires upon the pooch as he races through the area, but Smokey gets to Kat in time, gives her the Zeonizer, and she Morphs into Pink Ranger again. She fights off a fleet of Cogs and takes Digster on herself, but her twisted ankle acts up and she falls to his drillpower. She refuses to surrender and summons the "Zeo Ranger 1, Pink Fire Cloud" attack, which involves her shooting a fiery pink ball of gas at Digster. This is followed by a Zeo Ranger 1 Pink Power Disc (her special Zeo weapon) attack, as she spins into him with it. Yes, this isn't enough to beat him, he fires back and she gets struck, and just when Digster's about to destroy her, the other Rangers appear, firing their Zeo Laser Pistols. A combine group jumpkick takes Digster down, so Klank tosses Orbus onto the scene and makes him grow. The Zeo Megazord fights the giant Digster, a quick useless use of the Pink Battle Helmet is tossed in, and Digster ends up dug out by the Megazord Saber.
Up on the Skybase, Klank finally gets the credit for the lava idea, though it's more like the blame. In the Power Chamber, Alpha informs Zordon that the Rangers succeeded and Smokey is safe. Zordon congrats them on a job well done, and says that the explosion that destroyed Digster sealed up the lava cave as well. Later at the Youth Center, Tanya & Kat tell Lt. Stone all about the adventure Smokey had with the Rangers, saying he "passed his first field test". Sergeant Smokey smokes Bulk & Skull out about their swiping of Lt. Stone's lunch, and they're assigned to clean up trash once more.