Former CIA agent Bryan Mills reluctantly agrees to let his 17 year old daughter Kim go to Paris on a trip. His ex-wife Lenore and her new husband Stuart are all for it and Kim sets off with a friend. On arrival in Paris however, Kim and her friend are kidnapped by mobsters running a slavery-prostitution ring. Bryan's only lead is a short snippet of a conversation from when Kim phoned him in a panic. With that, he's able to identify the origin of the speaker and which criminal gang he's with. Once in Paris, he quickly shows everyone connected with the case that he will stop at nothing to get his daughter back.—garykmcd