Short science fiction film about a Midwest farmer who builds a bunker after finding a space plant

Question

This was a short film about some sort of items or plants/seeds sent to Earth. I remember a guy (like a Midwest farmer-style or something like that) found one.

He starts acting strange, building sort of a bunker container and is tracked by some sort of secret agent trying to get that item.

At the end of the film he puts his daughter with another dude and that item inside it. Then it is sort of the end of the world (post-apocalyptic style) but the magical plant from space is spreading out of that built container. During the destruction of Earth that organic matter sort of spreads inside the container to protect itself and the girl by creating a sort of cocoon.

Also that space magical plant or item fixed/healed a guy with broken legs or something similar in the middle of the movie.

Answer 1

I think you are looking for an Australian science fiction film named Terminus, as many of your details match:

• Nuclear war at the end, only the daughter and another survive
• War veteran with amputated leg has it regenerated
• Item from space is encased in an abandoned factory
• Tailed by government agents to find item from space
• Main character is a small town citizen
• Emergence from factory at end is into world covered in vegetation