Tommy Oliver, formerly the greatest of all Rangers, fights legions of mysterious beings as he flees an island, which eventually sinks beneath the sea. A year later, Oliver arrives at Reefside High School eager to begin a new life as a teacher, only to find a familiar name at large, and three eager, hot headed students, Kira, Conner, and Ethan, who stumble onto Tommy's collection of ancient Dino Gems, which provide the three with amazing powers and abilities...

Kira must escape from Mesogogs island base, while being chased by the Tyranodrones and henchmen Elsa

Connor's ambition to become Reefside High's top soccer player is put in jeopardy by his Ranger duties. Meanwhile, Ethan introduces his friends to the Cybercafe, run by Hayley, and Mesegog unleashes his first monster.

Held captive by Mesegog, Tommy's fate lies in his students uncovering his history as a Ranger in a series of video archives detailing the history of the various teams.

The Rangers uncover an invisiportal leading directly to Mesegogs' lair, they break into the lab and rescue Tommy just as Mesegog is about to tamp into the energies of the black Dino gem. A Power Ranger is soon reborn

An old friend of Kira's, a successful singing artist, returns to Reefside. Snobbish and spoiled by fame and her own beauty, the singer receives a shock when she is turned into an old, decayed woman by the monstrous Donkeyvac

Ethan, Kira, Devon and Cassidy all become trapped within the video game realm after falling victim to Mesegog's new De-magnetron monster. Ethan soon learns that there are no easy paths to victory, as a player or a Ranger.

Zeltrax uses his own DNA to create a young warrior he names Golden Rod. His eagerness to protect and teach Golden Boy furthers his maniacal side when his young protegee battles the Rangers. Meanwhile, the Cyber-Cafe is bought by Tommy's former partner Anton Mercer for his son Trent, one of Hayley's employees, who rejects the offer...

Elsa uses her guise of Principle Randal to intervene with the Rangers efforts to place the Dimetrozord under their control and turns it against them

Mesegog captures the beautiful model and actress Nickie Valentina to use for his latest monster

Trent stumbles on to an invisi-portal in Anton's office and falls victim to the power of the White Dino Gem, corrupting him and turning him into the formidable White Dino Ranger

The Rangers uncover a new Dinozord, but the White Ranger is able to steal a Dino-egg containing another. As Tommy races against Trent to retrieve the egg, the remaining Rangers are distracted by another ferocious monster leveling Reefside...

The White Ranger seizes control of the Stego Zord and combines it with the new Drago Zord. As Mesegog's monster resurfaces and Connor and Trent battle, Mesegog attempts to recruit Trent and offers him a place at his side.

Trent continues to battle the Rangers and Mesegog, but when he nearly kills Kira, he recognizes her and tells her the truth about him. Mesegog captures Trent, and to escape Trent is forced to morph, becoming evil once more and determined to capture and tame a new Zord that has hatched.

A meteor alters the personalities of not just Mesegog's forces, but also the Rangers. Trent, affected also by the meteor, is finally liberated from his corrupted personality and attempts to help the Rangers regain their original personalities and secure the meteor so his friends can use it to free Tommy from his amber prison

Trent is corrupted entirely by the White Dinogem, and he uses Kira's trust in him to lure the Rangers into a trap. He provides Tommy with a rigged Dino ATV and unleashes his own on the Rangers mentor. The remaining Rangers battle the Insectolite monster

One of Tommy and Mercer's older experiments resurfaces and seizes control of Kira.

While practicing for soccer -- badly -- the school bully kicks the soccer ball, which ends up in Ethan's path, and knocks his laptop out of his hand. Ethan is angry, and starts insulting the bully, who arranges for a fight to be held. But with Mesagog having released a new monster for the Power Rangers to defeat, the fight is put on hold. Meanwhile, Ethan thinks of another way to resolve his differences, rather than fighting.

Conner, Ethan, and Kira are astounded to discover that Japan has produced a television series based on the Dino Rangers. Initially critical of another culture's interpretation of them, Conner begins to learn that diversity provides a way of knowing what other countries and people think and express...

Kira gains the position of an assistant on a popular children's series, but it's mascot is captured and transformed into the Major Mackerel monster. Meanwhile Trent battles Zeltrax for the position of Mesegog's second-in-command

Zeltrax destroys Mesegog's lab, framing Trent in the process. Meanwhile, Mesegog uses the Copyotter monster to duplicate the citizens of Reefside. Anton Mercer is able to save Trent from Mesegog's wrath, and is able to rid the White Dinogem of it's evil encoding. Zeltrax creates a clone of the White Dino Ranger to take Trent's place

Zeltrax creates a new monster from the White Ranger clone's DNA, Terrorsaur. Unable to defeat Terrorsaur and the White Ranger, the Rangers must uncover a legendary shield. Can Trent be trusted to help Tommy uncover the ancient Shield of Triumph in time before Terrasaur destroys the Rangers in their next battle?

Kira gains a record deal, but is there more to this than simply getting a major break?

Cassidy auditions for the position of a television reporter, whilst Mesegog hatches an insane scheme to destroy Jupiter and disrupt Earth’s magnetic Field. In a battle to preserve all human life, Conner uses the power of the Triassic Ranger to battle the White Ranger clone within a dangerous pocket dimension.

Ethan accidentally reads a prophetic message of doom left behind by the ancient Egyptian monster Tutenhawken, who awakens as Ethan begins to suffer a series of misdemeanors.

Tommy finally uncovers a means of demorphing, but the consequences render him permanently cloaked in invisibility. Meanwhile, Ethan and Cassidy go on their first date

Hayley attempts another means of restoring Tommy to his original, and visible, form, but during the operation the Black Dino Gem malfunctions the equipment and shatters into three halves, leaving Tommy in a coma. As The Rangers are forced to flee from Mesegog's latest creature, Tommy is locked in a ferocious battle within his own mind against three of his former Ranger identity's for control of his sanity and his life...

Conner pretends to care about a preservationists crusade to protect a tree from being demolished, with both unaware that the tree carries water from a fountain of Youth. Zeltrax transforms this tree into a monster and feeds off it's energy, gaining a new form and terrifying powers.

Elsa captures Reefside's leading Volcano authority and transforms him into a monster that will willingly locate and trigger the dormant Volcano outside the city.

The White Ranger Clone discovers to his horror that the existence of two White Rangers is causing a disruption within the Morphing Grid, and only one of the two must exist. The desperate clone engages the Rangers in battle before facing Trent himself...

Lothor escapes from the abyss of evil and promptly traps and turns the three Wind Ninja Rangers against their allies with the aid of special morphers that restore their powers, but bend them to his will. The Wind Rangers commence an attack on Reefside, prompting retaliation from the Dinorangers, whilst the Thunder Rangers and Cameron try to find a way of freeing the Wind Rangers from Lothor's control

With the Wind Rangers still under Lothor's control, Mesegog allies himself with him and they combine their forces. Meanwhile, Cam, Hunter, and Blake venture to the Abyss of Evil itself to retrieve the Samurai Amulet. When the Wind Rangers are freed from their enslavement by their friends, all eleven Rangers battle Mesegog and Lothor's armies.

Deciding that the Power Rangers are completely vulnerable in their sleep, but they are completely safe, Messagog decides to send monsters into the dreams of each and every Power Ranger, and if they lose the battle, they'll never wake up again.

One of Trent's idols, the renowned comic artist Carson Daily, is given a new pen by Elsa in her guise of Principle Randal, but when he uses it to illustrate a new comic, he traps the Rangers in another dimension against an invincible monster. Trent, the only one remaining outside of Daily's strip, reads the pages and becomes suspicious of the illustrations asking for his help, but can he persuade Daily into helping the Rangers before they are destroyed?

Ethan's prized Ruby Dragon card that he uses to win the card game "Dragon Wars" is confiscated b Principal Randal Tommy's efforts to regain the card ultimately lead to him discovering Randal's true identity and he battles her as Elsa and Randal across the school. Trent attempts to regain the card at Mesegog's lair, but is overpowered. As the Rangers battle the Ruby Dragon monster created from the card, Mesegog threatens Elsa, forcing her to expose his secret to the Rangers...

Discovering that Trent has hid the secret of Mesegog from them, the Rangers discuss whenever or not he can be trusted and reflect on their previous battles with and against Trent, as well as how they have matured themselves. Mesegog finally separates himself from Anton Mercer

Mesegog prepares the final stages of his scheme to restore the planet to the age of the dinosaurs and unleashes a cannon that will transform all human life into the species. Using the energies of Elsa, Mesegog is able to prepare the cannon for use, reducing Elsa to an amnesiac wanderer. Devon discovers the Rangers secret identities, and Trent uses himself as bait to distract Mesegog and allow the Rangers to launch an assault on his island

Zeltrax captures Elsa (A.K.A. Principal Randall) and destroys the Dino Lab before unveiling his powerful Zelzord. Tommy ventures into the Zelzord to confront Zeltrax, ultimately defeating him, but the destruction of the maverick Zelzord itself comes at a high price As the Rangers recover from this ferocious conflict, they find that Mesegog remains at large, having absorbed some of the Dinogems energy, and is now capable of duplicating his own DNA. The Rangers use the remainder of their power to confront him in a final battle to emerge as the dominant species