Film ending

[Cockney_si]

can anyone tell me what happens at the end of a cheesy eigthies film called Annihalation?

The film starts off with a guy in a huge car chase, he explains that his girlfriend was on a plane that got taken out of the sky and replaced with copies of people, his girly tries to kill him and he runs her over in his truck.

Later there's a big chase and then the end of the film which I don't know what happens then.

 

Thanks.