Returner

“The future could be history.”

Miyamoto (Takeshi Kaneshiro) is a hitman in present-day Japan who takes contracts, does the work and expects to be left alone. Then Milly (Anne Suzuki), a young woman from the future, shows up with a gun and an order to help her stop an alien race from invading Earth. Takashi Yamazaki sets the two on the run together, with the whole human race wiped out if they fail.