My sister's been kidnapped

Ben peter's is an ordinary boy. He's got 4 older brothers that are already out of the house either off to College or already have started their own families. Now it's just him, his 15 year old little sister Caroline and his mom. He's very protective over Caroline because when he was 2 his dad was killed, but he doesn't know how it happened. He knows that she needs someone to protect her, so he decides to do it himself.

One night though, after a party Caroline is kidnapped by these mysterious men driving a mysterious car. Ben is starting to chase them when something terrible happens. Now it's up to Ben and his friends to go out and try to find Caroline and bring her back home. While Caroline is trying to decide whether the place that she's taken too is really bad or not.