If you wanted the son on the space station how about this for a logline:
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"When her sons class is kidnapped while on a space station she designed, a head strong architect has two hours infiltrate the station and save them, before the Eco-Terrorists begin killing prisoners."
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Just a thought.
Remember, when you do a "Monster in the house" movie. There must be a monster (Terrorist) a house (Space station) and Sin
Perhaps the owner of the space station is dumping his garbage in an illegal way and the Eco-Terrorist's claims are true.
The hero will make the terrorist go 'splat' as long as they have her son. But perhaps there is a hidden bad guy as well.