"If the sun dies, so do we."
50 years from now the sun is dying and life on earth is threatened by arctic temperatures. Mankind puts together all its resources and sends a spaceship carrying a huge bomb designed to re-ignite the dying sun.
Wow, unexpectdly cool! Apart from the last scene (wtf is the giant cube? Where's gravity? Shouldn't the force be centrifugal when rotating?) it was good, visually pleasant considering the awful poster and the (I guess) not-so-great budget.