A rather shaky old woman is trying to put a mountain bike on the bike rack of her car. But she has forgotten a rather important thing, the car's is not on handbrake. To her astonishment she sees the car starting to run downhill with no one behind the steering wheel. What to do? She tries to get on the mountain bike to start chasing the renegade car. She isn't used to the bike however and doesn't seem to gain any ground. When she sees the car almost running over some innocent children, there's only thing that can save the day: girl power.
