2001 ("over a year" before "Darkness Awakening")
- Master Org (Dr. Adler) reopens the Nexus; the Wildzords and Shayla awaken.
- Taylor lands on the Animarium and becomes the Yellow Wild Force Ranger. Shayla helps her against her first foe, Motorcycle Org.
- "Click, Click, Zoom" (seal weakened, Wildzords and Shayla awakened)
- "The Bear Necessities" (Taylor becomes Yellow)
- "Revenge of Zen-Aku" (Motorcycle Org)
~2001 ("some years" before the latter portion of "Day of the Dino")
- Anton Mercer selects Tommy to assist in his dinosaur cyborg research.
- Upon finding three Dino Gems, Tommy secretly recruits Hayley to build Dino Morphers.
- Mercer is transformed into Mesogog. Tommy escapes the destruction of their lab; their projects are scattered.
- Mesogog rebuilds Tommy's rival "Smitty" into Zeltrax following another accident.
- In human form, Mercer survives a cave-in and takes in the orphaned Trent.
- "Day of the Dino" (collaboration, Dino Gems/Morphers, lab destroyed)
- "Wave Goodbye" (projects scattered)
- "Legacy of Power" (Hayley)
- "Golden Boy" (Trent)
- "Bully for Ethan" (Smitty/Zeltrax)
- "Copy That" (Mesogog's origin)
~late 2001 ("about 6 months" before "Darkness Awakening")
- Alyssa joins Taylor (above) as the White Wild Force Ranger.
- Max is soon recruited as the Blue Ranger after an encounter with Turbine Org.
- "Darkness Awakening" (Alyssa, time frame)
- "The Tornado Spin" (Max)
- Space Patrol Delta (SPD) spans the galaxy, having started on the planet Sirius (home to Doggie Cruger).
- In its infancy in 2001, SPD Earth operates (or will operate) in Newtech City. Extraterrestrials begin arriving on Earth.
- Working for SPD Earth, Kat Manx experiments with Ranger technology; side-effects cause her human crew to later sire metahuman children.
- "Beginnings" / "Idol" / "Shadow, part 1" (SPD origins)
- "Sam, part 2" (SPD pioneers in 2001, metahuman children)
~2001–2002 ("6 [or] 7 years" before "One Master Too Many")
- R.J., son of Pai Zhua's Master Finn, trains with Master Swoop before discovering his wolf spirit.
- "Sigh of the Tiger" / "Blind Leading the Blind" (R.J. trained with Master Swoop)
- "One Master Too Many" (Master Finn and R.J. clash, wolf spirit)
2002 ("6 years" before "Path of the Rhino")
- "Path of the Rhino" (Dominic sets out, wanders for six years)
- "Dash for the Dagger" (Control Dagger)
- Danny becomes the Black Wild Force Ranger. As the team pursues Turbine Org, Max helps Danny conquer his fear of heights.
- Two months later, Cole completes the team as the Red Ranger.
- Jindrax and Toxica join Master Org but grow suspicious of his identity.
- General Nayzor frees Zen-Aku. Zen-Aku frees Taylor's old foe Motorcycle Org.
- Restored to human form with Animus's help, Merrick becomes the Lunar Wolf Ranger.
- "Lionheart" (Jindrax and Toxica revealed)
- "Darkness Awakening" (Danny time frame, Jindrax and Toxica serve Master Org in Nexus)
- "Never Give Up!" (Danny and Max)
- "Wishes on the Water" (Toxica grows suspicious)
- "Curse of the Wolf" (Nayzor, Zen-Aku released)
- "Revenge of Zen-Aku" (Motorcycle Org)
- "The Ancient Warrior" (Merrick freed)
- "The Lone Wolf" (Lunar Wolf Ranger)
- Metahuman children (including Sky and Bridge) begin to be born to SPD pioneers. Z will be shunned, and Jack (born to missionaries) will live on the streets.
- Born to a wealthy family, Syd will become a cover girl with her own pop album.
- "Beginnings, part 1" (Jack on streets)
- "Confronted" / "Samurai" (Syd the cover-girl)
- "Dogged" / "Stakeout" (Syd's family)
- "Sam, part 2" (SPD pioneers, missionaries)
- "Zapped" (Syd's album)
- Jen tracks Mut-Orgs from 3001; the Wild Force Rangers ally with Wes and Eric.
- The other Time Force Rangers bring Ransik and Nadira from 3001. Ransik's mutant DNA is nullified in battle, and the Mut-Orgs are destroyed. Which Time Force Rangers (if any) return to the future?
- "Reinforcements from the Future" (Mut-Orgs, year stated)
- Bulk and Skull have reunited; Bulk runs a resort (which Tommy visits). Where is young Spike?
- Remnants of the Machine Empire dig up Serpentera on the moon. Hearing the news from Andros, Tommy gathers additional Red Rangers Jason, T.J., Carter, Wes, Eric, and Cole. All have working powers for the time being, including Tommy as Zeo Ranger V. Leo and Aurico rendezvous on the moon, and Serpentera is destroyed.
- Tommy will later return to Reefside without working powers (though most Rangers will appear to be repowered by the time of the Legendary Battle).
- Master Org is destroyed. Shayla returns to the sky with the Wildzords.
- "Reinforcements from the Future" (year)
- "Forever Red" (Bulk and Skull, Tommy, Red Rangers)
- "The End of the Power Rangers" (Master Org destroyed)
- "Legacy of Power" (Tommy no longer a Ranger)
late 2002 ("nearly a year" before "White Thunder")
- "White Thunder, part 1" (white Dino Gem)
- "Thunder Struck, part 2" (time estimated: class of 2003–04)
- Lothor attacks the Thunder Ninja Academy (his nieces Marah and Kapri join him for the summer). Blake and Hunter are captured despite receiving Thunder Morphers; Lothor lies about their parents' death.
- Lothor attacks the Wind Ninja Academy. Shane, Tori, and Dustin become Wind Rangers and are eventually joined by Thunder Rangers Blake and Hunter.
- Cam uses the Scroll of Time to meet his parents in the past and returns as the Green Samurai Ranger.
- Skyla returns to Earth, again pursued by Vexacus; she dies and passes her energies to Shane.
- Shimazu is awakened.
- Lothor's generals turn on each other, their spirits filling the Abyss of Evil. The ninja teens seal Lothor (and their own powers) in the abyss.
- Blake pursues a motocross career, while Marah, Kapri, and Conner's twin brother join the Wind Ninja Academy. Tori will begin making custom surfboards.
- "Prelude to a Storm" (Lothor attacks Wind Ninja Academy, Wind Rangers chosen)
- "There's No 'I' in Team" (Marah and Kapri with Lothor for the summer)
- "Beauty and the Beach" / "Looming Thunder" / "Thunder Strangers" (Lothor unleashes Thunder Rangers)
- "Thunder Strangers, part 3" (Blake and Hunter's parents)
- "Return of Thunder, part 3" (Thunder Morphers, Lothor's attack, lie)
- "The Samurai's Journey" (Green Samurai Ranger)
- "Shane's Karma" (Skyla, Vexacus)
- "Shimazu Returns" (Shimazu)
- "General Deception" / "A Gem of a Day" / "Down and Dirty" / "Storm Before the Calm" (generals destroyed)
- "Storm Before the Calm" (Abyss of Evil, Scroll of Destiny, Lothor trapped)
- "Storm Before the Calm, part 2" / "Legacy of Power" (Conner's twin)
- "Thunder Struck, part 2" (summer estimated from Dino team's school year)
- "Once a Ranger, part 2" (Tori's custom surfboards)
fall–winter 2003 (Dino teens' senior year)
- Now a doctor of paleontology (and single?), Tommy begins teaching science at Reefside High, while Hayley runs a cyber-cafe. Elsa poses as Principal Randall.
- Conner, Kira, and Ethan discover the Dino Gems in Tommy's lair and use them to battle Mesogog. Tommy takes a fourth gem from Mesogog to become the Black Ranger.
- Trent stumbles upon the white Dino Gem and turns evil. He is later purified but keeps his father's identity secret.
- Tutenhawken is awakened but defeated by Ethan.
- Lothor escapes. The Ninja Storm and Dino Rangers defeat Lothor's forces; Mesogog seals Lothor in a bottle.
- "Day of the Dino" (Tommy begins teaching, Dino Gems, Morphers, Elsa/Randall)
- "Day of the Dino" through "In Your Dreams" (2003 portion of 2003–04 school year)
- "Wave Goodbye" (cyber-cafe)
- "Legacy of Power" (Morphers built by Hayley)
- "Back in Black" (Black Ranger)
- "White Thunder" (White Ranger)
- "Tutenhawken's Curse" (Tutenhawken)
- "Thunder Storm" (Lothor, Ninja Storm Rangers)
- "In Your Dreams" (Christmastime)
- Emperor Gruumm arrives from 2025, pursued by the SPD Rangers. Zeltrax manages to survive the ensuing SPD-Dino teamup.
- Before departing, Commander Cruger wipes all of the Rangers' recent memories (except Tommy and Sam?).
- At the time of the teamup (left), Bridge is roughly a week old, having been born on a trans-Pacific flight.
- "Zapped" (flight)
- "Wormhole" (born week before Gruumm's visit to 2004)
winter–spring 2004 (senior year, cont'd)
- Mesogog splits from Mercer's body and drains Elsa's powers. The Dino Rangers sacrifice their Zords and powers to destroy Zeltrax's Zord and Mesogog's advanced form.
- The teens attend prom at the end of their senior year. Trent will later attend art school, while Tommy and Elsa remain employed at Reefside High.
- By 2025, the depleted Dino Gems (at least red, yellow, and blue) will make their way to Onyx.
- "A Test of Trust" (Mesogog splits from Mercer)
- "Thunder Struck" (human Elsa, Rangers' identities, Mercer freed, Mesogog destroyed, senior prom, Trent to art school, Tommy remains at Reefside High)
- "History" (Dino Gems on Onyx)