Kousoku Sentai Turboranger (1989)

It's the very first Super Sentai series what made many of it's successors possible. If you want to watch the original first season of the Super Sentai series.

It's the 12th sequel of the series from Super Sentai right after Choujuu Sentai Liveman which is the 11th sequel. If you would like to watch the super sentai series chronologically.

It's the 13th sequel of the series from Super Sentai right after Kousoku Sentai Turboranger which is the 12th sequel. If you would like to watch the super sentai series chronologically.