[1] The opening narration of the series announces, "People from the future in the year 3000 AD and one man have met by chance, for the sake of marking a new passage of time…!"

The series debuted on February 13, 2000, when it replaced Kyuukyuu Sentai GoGoFive in TV Asahi's 7:30 JST time-slot, joining the recently-debuted Kamen Rider Kuuga in what would 3 years later become the Super Hero Time programming block.

Tatsuya rents a building for them to live in, and they start a small odd-jobs business called Tomorrow Research to financially support themselves.

Although Yuuri is the team leader, Tatsuya is the driving force of the Timerangers, essentially acting as field commander during the battles.

When operating the Time Robo formations, Tatsuya is usually in charge of accessing the finishers to recapture the Londerz Prisoners by wielding a miniature version of the Space-Time Sword/Chrono Divider to mimic the movement pattern.

Ayase/Time Blue (アヤセ/タイムブルー, Ayase/Taimu Burū): A former racer, this calm-headed 22-year-old is the second-in-command with a knack for high-speed battles and a deadpan sense of humor.

Despite this, Domon has great respect for the rules and, after learning that Sion is an orphan, he sticks up for him and refuses to let anyone call him an alien.

After the future is changed in the finale, Domon learns that his ban is reduced to a one-year suspension from the ring, which was up by the time he returns to the year 3001.

Sion/Time Green (シオン/タイムグリーン, Shion/Taimu Gurīn): A 17-year-old alien from the planet Hubbard (ハバード, Habādo), which was destroyed as the result of war, he was raised on Earth in a laboratory.

He is the Timerangers' technical expert, capable of operating any machine, and in charge of Tomorrow Research computer repairs.

Naoto Takizawa/Time Fire (滝沢 直人/タイムファイヤー, Takizawa Naoto/Taimu Faiyā, 28–49 & Timeranger VS. GoGo V): Tatsuya's 28- year-old rival and leader of the City Guardians established by the Asami Group.

After Wataru is hospitalized, Naoto is able to use that knowledge to gain full control of the City Guardians.

After Naoto is injured during the battle against NeoCrisis, he finds out that Wataru has forced Ibuki to resign and the City Guardians were able to remove the voice lock function on the V-Commander, which means they no longer need him.

He succeeds, but is shot down by a Zenitt, which mortally wounds him and causes him to lose his balance and fall over a high stairwell railing.

However, once they return, he attempts to erase their memories of their time in 2000–2001, telling the Timerangers how their actions in the past have changed their futures for the better.

Ryuya reveals that, not only is he the one who lets Don Dolnero escape into the past, but everything leading to the Timerangers being formed and Gien's insanity reaching its peak are also planned to ensure that the "better" of the two futures he saw would come to pass.

He also reveals that the Timerangers are supposed to die in the first giant battle, and the aid he sends save their lives many times over.

To prevent his demise, Ryuya sets up the V-Rex's disappearance to ensure that someone from the past will become Time Fire and die in his place.

Wataru is a ruthless individual who is only concerned with business matters and tries to control Tatsuya's life, thinking that his son is only meant to succeed him.

After Yuuri and the Timerangers depart for 3000, Wataru decides to allow Tatsuya to live his own life until he feels that he is ready to join the Asami Group.

Eventually, Domon finds out about the confusion when he notices Honami's wallet on the ground after he arrives late for a date and sees Ayase's picture in it.

During the Super Sentai Compilation's segment on GoGoFive, the team instantly recognizes them due to their team-up.

While most mecha are launched from the Provider Base in the year 3000 when Tac calls "Emergency System, requesting activation!

He has access to the Hell's Gate prisoners and cares for nothing except for his own sadistic pleasures, occasionally going against Dolnero's orders, as well.

After Tatsuya saves the future by destroying NeoCrisis, Gien's original personality resurfaces as he breaks part and dissolves away into sand.

Taking place on October 25, 2000, between cases 35 and 36, the Timerangers confront the Londerz prisoner Boribaru, who somehow resists the Voltech Bazooka and runs off.

Later, unaware of their civilian identities, the Tatsumi siblings arrive at Tomorrow Research to get help in finding their father, who mysteriously disappeared, along with their GoGo Braces.

By then, it is revealed that the Londerz prisoners' new-found invincibility is the work of Spell Master Pierre, the surviving servant of the Psyma family.

The two Sentai teams fight the prisoners until Pierre makes Boribaru powerful enough to create a space-time distortion that sucks all combatants into pocket dimensions.

While others fight for their lives against the prisoners with their transformation devices disabled, Pierre tries to stop Mondo from getting the Sentai teams back until Time Fire intervenes.