The lady robber opened the car door, grabbed the women’s purse and reversed the car. While the car is still moving, the lady is holding on to her purse.
That’s when the good samaritan pops up, draws his weapon and scared them. He then pulls the robbers, a man and a woman, out the car. He holds them captive until police arrive.
The good Samaritan who pulled his weapon on the robbers, purchased some candy for his kids and drove away in his PT Cruiser.
It seems it was back to business as usual for the good Samaritan afterwards.