Title- Uchuu Saidai no Takara (The Greatest Treasure in the Universe)
With Basco gone, and all the ranger keys and great powers gathered, Marvelous and crew finally gain access to the Greatest Treasure in the Universe, but there seems to be one small problem. At that time, "The Earth's Will" allows SunVulcan and other teams to speak through the Greatest Treasure to the Gokaiger.
Meanwhile, the Zangyack mobilize their plan to conquer Earth, once and for all.
Title- Kessen no Hi (Day of the Great Battle)
Zangyack is advancing their final plans, which includes an all out attack on the Gokaiger, and the ultimate destruction of Earth! It has been revealed that the Greatest Treasure in the Universe can, and must, be used to wipeout Zangyack's Great Fleet, completely. The Gokaiger are hesistant to do so, wondering what their compensation would be.
Episode 51 (Final Episode):
Title- Sayonara Uchuu Kaizoku (Goodbye Space Pirates)
The Gokaiger engage in a life-or-death struggle against the Zangyack. What will the Gokaiger do with the Super Sentai's 34 Great Powers? One after the other, strong enemies gather to stand in the Gokaiger's way....