After the events in Paris in Taken, the cousins of the criminals whom Bryan Mills (Liam Neeson) killed while searching for his daughter, Kim (Maggie Grace), arrive from France and return to their hometown of Tropojë, Albania, for the dead men's funeral. During the ceremony, Murad (Rade Šerbedžija), the employer of the men and father of Marko, whom Bryan killed by electrocution, states that they will find Bryan to avenge the deaths of their loved ones.
Kim and her mother Lenore (Famke Janssen), who is currently having relationship problems with her husband, surprise Bryan by joining him in Istanbul, where he is relaxing after a work assignment. While Kim remains at the hotel, Lenore and Bryan are being followed by Murad's men on the streets of Istanbul. The men capture Lenore, forcing Bryan to surrender, but before he does he calls Kim and warns her, allowing her to escape the men who were sent to find her.
Bryan wakes with his hands tied to a pole in a dark room. Using a communications device that he has hidden in his sock, Bryan calls Kim, instructing her to go to the US Embassy and tell them what happened, but she begs for a chance to help him and Lenore. Under Bryan's guidance, she opens up his weaponry suitcase and throws a live grenade out of the window. Bryan uses the time it takes for the sound of the explosion to reach him in order to deduce his location. He then has her take a gun and two more grenades and travel towards his location via the rooftops, while he frees himself from his restraints and sends steam up a chimney to mark his location. Kim tosses the gun down the Chimney and Bryan uses it to escape, rescuing her from the men who have been chasing her.
The above taken from Wikipedia.
Worthwhile to watch with many toe-crunching actions! Storyline may be sublimed but overall it's a good movie.