Gokaigers

The Gokaigers (ゴーカイジャー, Gōkaijā^?) are the fictional protagonists featured in the 35th Super Sentai Series Kaizoku Sentai Gokaiger. The Gokaigers battle against the antagonist group, the Space Empire Zangyack.

The Gokaiger characters make their debut in the film Tensou Sentai Goseiger vs. Shinkenger: Epic on Ginmaku where they briefly appear to fight against some of the Gedoushu and defeat Shitari of the Bones, with DaiGoyou as a witness whom they have promise not to tell his group. This appearance was later explained during the series proper in episode 40.

The Gokaigers are a group of young pirates from space that hear of the legend of the Greatest Treasure in the Universe, which leads them to Earth. However, on their journey, they cross paths with the evil Space Empire Zangyack, who conquered their planets long ago and placed bounties on their heads before indirectly interfering in their invasion of Earth and increasing the bounty as a result. When searching for treasure or before battle, the Gokaigers tend to say "Let's make this flashy!!" (派手に行くぜ！！, Hade ni ikuze!!^?). Whenever the Gokaigers change into a past Super Sentai group, they will sometimes refer to themselves as the "pirated" (海賊版, kaizokuban^?) version of that team. The Gokaigers oftens state that they are not heroes like the Super Sentai, but rather they say that they are merely pirates who only help out due to circumstance. But their experience on Earth, especially after Gai joins the crew, has led them to accept their role as Super Sentai as they value the earth and its inhabitants as they wish to protect the earth.

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Wikipedia