Plot

An adrenaline junkie walks away from a whirlwind romance and embraces a new life as a thief, though he soon finds himself pursued by veteran police officer and engaged in a turf war with a local gangster.

On a train journey in Warsaw, psychiatrist Shaina meets Himanshu, who is a police officer from India to discuss their prospective marriage. Both are reluctant to enter into an arranged union but become friends and strike a deep conversation where Shaina reveals her previous relationship with the eccentric Devi, a man who lived only for his 'Kick' aka an adrenaline rush . Despite his idiosyncrasies they embark on a whirlwind romance, until one day he breaks up with her for a new 'Kick' and walks away never to return. Himanshu in turn regales her with his glorious escapades as an officer but mentions that he has finally met his match, an intelligent thief. What they are both unaware of is that their stories have one thing in common, Devi. He returns to their lives under the pretext of having lost his memory. Behind it all, is a deeper mystery and an uncompromising mission for which Devi is ready to lose his life.—Alan Bosco

Shaina (Jaqueline Fernandez) is a psychiatrist living in Poland. One day, her father brings a marriage proposal and asks her to meet Himanshu (Randeep Hooda). Himanshu and Shaina meet in a train, where Shaina reveals about her ex-boyfriend, Devi Lal Singh then she talks about her experience with him.

Devi Lal Singh (Salman Khan) is an adventurous youth, who is always looking for a 'Kick' or adventure in life. Due to his daredevil attitude, he never stays in one job for long. He has resigned from 32 companies as he feels the kick is missing. When Shaina first meets Devi, she is trying to help her friend elope with her lover. Devi rescues them both and helps her mother to follow them and reach the temple. When asked why, Devi replies, because of the kick. Shaina initially dislikes Devi because of his thrill-seeking attitude. Later, when she realizes that Devi is a good-nature person, she starts to fall for him. Devi is highly qualified but addicted to kick.

Shaina and Devi decide to get married. On Shaina's suggestion, Devi accepts a job in a chemical lab, but he resigns in a few days after suffering again from lack of Kick. When Shaina hears about it, she breaks up with him. He also breaks up with her and moves away after telling her that he is going to get another job in which he won't suffer from lack of kick. Shaina leaves for Poland, where her parents live, and does not get seen by Devi for a year.

Himanshu, who is a police inspector, comes to Poland to catch a thief. The robber, called 'Devil', targets all the rich people associated with Shiv Gazra (Nawazuddin Siddiqui), a corrupt businessman, and robs them just for fun. Shiv has used his father's (who is the home minister's) connections to amass his ill-gotten empire for himself & his friends. Shiv takes kickbacks from foreign drug companies to include their highly priced drugs on the Govt drug purchase programs & pushes up the cost of treatment in India. The robber is none other than Devi. After Himanshu is unsuccessful in catching Devil, Devi contacts Himanshu and refers to him as "partner" and insults him by calling him a loser. He also hints where his next robbery will be, which brings Himanshu to Poland.

Meanwhile, Shaina spots Devi in Poland. He has come there for treatment after losing his memory in an accident. Shaina, who is a psychiatrist, offers to handle Devi's case and decides to take him home. It is later revealed that Devi is just bluffing. His real plan is to befriend and fool Himanshu and rob Shiv, who will be coming to Poland for a deal worth Crore of rupees. Devi enters a charity function and robs Shiv, who was about to invest a huge amount of money in a foreign firm.

During the robbery Himanshu and Shaina discover Devil's true identity. Devi escapes by jumping from a building and rides a bus. He is then chased by cops led by Himanshu. After a long chase many cops gets destroyed but he gets cornered by Himanshu with few cops, but he escapes by jumping off the bridge. Unfortunately, the bus falls into the river, and the cash is destroyed in the process. Devi then celebrates his failure.

Himanshu spots and warns him that if he tries to rob again, he will be killed, but Devi challenges him by saying that he will rob a huge party fund worth 500 Crore rupees. Devi's true intentions or good deeds are revealed by his father Lal Singh (Mithun Chakraborty), he tells Shaina with his flashback that his son is committing robberies to help poor children who are suffering from diseases and need Lakhs of rupees for treatment.

Devi once saved a girl named Jhumki, who had a tumor, by getting 20 Lakhs in another way after getting a letter sent by her dead parents asking for help to save Jhumki. Devi had approached Shiv & his friends who ran a charitable trust & were siphoning out money from it for personal gains but was insulted by all of them & kicked out. So, Devi decided to loot them to fund the treatment of needy kids. When a doctor tells him that several children are suffering from diseases, he decides to save them by performing robberies in order to get the money after knowing that this will give him a lot of kick.

Later, Devi (Making himself as Devil) goes to steal the party funds, only to find Shiv and his gang waiting for him. After a long fight with Shiv and his gang, Devi kills Shiv. He hands over all the money to his father. Himanshu gets ready with many officers to shoot Devi, but millions of kids block his way. It turns out that 14 November is Children's Day, and the children are going to pray to Devi and thank him for saving them. Himanshu realizes that all the robberies Devi did was actually for the kids. At the epilogue, Devi joins the police force, and the home minister hands him Devil's case. He and Shaina get together once again in the end.