In the 30th century, time travel has been outlawed. To insure the prevention of time paradoxes, the Time Protection Department a.k.a. the TPD was established to prevent further time crimes. When four enlisted TPD cadets were tricked by a mafia family called the Londers in letting them travel to the year 2000 A.D. to commit crimes, the four cadets must also travel to the year 2000 to take down the Londers as the Timerangers. The four recruits are only able to commence their mission when there is five rangers in the team. So they forced a martial artist from the year 2000 named Tatsuya Asami to become the fifth ranger. While stationed in the 21st century, Tatsuya rents a building for the other four rangers as a means of housing and running a small business called Tomorrow Research, With five rangers patrolling the city, the Londers family will not stand a chance against them.