In every Sentai show, the fight between good and evil is illustrated, with the good side winning most of the time. The basic premise of the series is that a group of (usually) five people gain special powers (magical or technological), wear colored outfits, and use advanced weapons and martial arts skills to battle powerful beings from other planets and/or dimensions threatening to take over the Earth. In most of the episodes, after the team has beaten an army of evil creatures ("grunts") and the "monster of the week", they call for huge robotic vehicles/animals ("mechas") that can combine to form one giant robot to fight an enlarged version of the monster. Sentai series with the giant robot element are specifically known as Super Sentai. Each Sentai is set in a different fictional universe, with the exception of specials that feature a teaming up with the previous Sentai.
The first Sentai series, Himitsu Sentai Goranger, was created by the late Shotaro Ishinomori, creator of Kamen Rider and Cyborg 009 in 1975. He did not create any further Sentai series after his second, J.A.K.Q. Dengekitai, wasn't received well. These two series were not a part of the Super Sentai series until 1994 when TOEI decided to include them with the series that followed.
The third Sentai series, Battle Fever J (1979), is the first Super Sentai show (on account of it being the first to have a giant robot that the heroes ride - the past two shows only had vehicles).
The term sentai is also occasionally used to describe shows with similar premises, such as Voltron, or even the magical girl team in Sailor Moon. However, this definition was never official for these types of shows. In 2003, Sailor Moon was retold in a fashion somewhat similar to Sentai shows in the form of Pretty Guardian Sailor Moon. While not officially Sentai, some fans of the genre have accepted it as such.
The Series Are
Super Sentai World
Carranger VS OhRanger
JakQ VS Goranger
Trubo Ranger Spesial
Mirai Sentai Timeranger Vs KyuuKyuu Sentai GoGo V
