A man uses an arsenal of weapons to battle a gang of heavily armed thugs in the city. With the city under fire and people's lives at risk, the one man has to give everything he has got to take the city back.
This action thriller is about a power battle which is taking place in the higher echelons of power unrelated and unconnected episodes occurring in different parts of the globe, Intertwine in an unforeseen manner to a revelation of mind games. The story delves the audience into the game of a brilliant master mind to reveal the true nature of all that are involved. It challenges the perceptions of who is the hunter and who is the hunted.
Roy (Jackie Shroff), crime boss of Waaji City's underworld, is killed in a car accident. Devaraj (Chunky Pandey), the son of a former crime boss Prithvi Raj (Tinnu Anand) (who had earlier given his crime empire to Roy instead of his own son), declares himself the next leader of the crime syndicate; he is supported by some members, but opposed by the rest. However, Roy's son Vishwank (Arun Vijay) foils his plans by succeeding his father as the next boss. Vishwank is also determined to unmask his father's murderer and sets out to lead Waaji City.Prince (Mahesh Manjrekar) works for Roy in his syndicate. Devaraj hated Roy but had to work under him for many yrs due to his father's decision, so he almost killed his own father when the news of Roy's death reached him..
Roy wanted to set up a hydroelectric plant in India (to legitimize his illegal businesses of gold and oil smuggling), but was opposed by the local minister of India. However, he managed to get the permission signature on a letter from him by kidnapping his whole family and forcing him to do his bidding. Then, the gangsters' money is on a ship which gets destroyed in a bomb blast.Vishwank knows the location of a secret vault where Roy had saved his riches. Only a black box can open the secure vault.
The story then turns to India, where a genius thief steals about two trillion rupees with ease. A nationwide manhunt ensues to find the culprit. Undercover agent Ashok Chakravarthy (Prabhas) is assigned as head of the manhunt task-force. Although he initially refuses, he relents after finding out that Amritha Nair, a woman he is infatuated with, will also be on the task-force. The task-force uncovers the whereabouts of the thief and traps him during his next robbery, after Amritha and Ashok fall in love. Ashok tracks the thief and figures out that he is planning to steal the black box which will unlock Roy's riches. Ashok & Amritha then figure out the location of the black box by tracking the movements of Devraj's close associates.They let the thief (Neil Nitin Mukesh) take a black box that can open a locker containing treasures at a secure building in Waaji City.
Later, there is a chase in which Amritha, Ashok, and Officer David confront the thief at a bridge. It is then revealed that the thief was actually undercover officer Ashok Chakravarthy (Neil Nitin Mukesh) and the person pretending to be Ashok is S. N. Saaho (Prabhas) who is the actual person committing the robberies. As Saaho escapes with his partner David (Murali Sharma), Amritha (Shraddha Kapoor) along with the entire Indian justice department is stunned.
Afterwards, it is revealed that Devaraj killed Roy in order to gain power and that the money of the gangsters are with him and that he was the one who planned the blast on the ship. Amritha then tracks Saaho all the way to Waaji city and pretends that she is still in love with him but is actually helping Ashok. Whle Amritha is with Ashok, both are attacked by Prince, who wants the black box from Saaho, but Saaho refuses to hand it over to Prince or Devraj.Meanwhile, Amritha actually falls for him and betrays Ashok. While they are about to kiss, Amritha is shot and taken away by Devaraj. Saaho is forced by Devaraj to give him the black box, but later betrays him as he strikes a deal and gives the black box to Vishwank in exchange for rescuing Amritha.
Saaho also destroys Devaraj's building and steals the money that he had with him. Amritha is then subsequently saved by Ibrahim, one of Vishwank's associates. Saaho is then chased by Ashok and the police, with Amritha in a helicopter with a sniper. As the sniper is shooting him, Amritha tries to save Saaho by distracting the sniper, but the sniper pushes her towards the very end of the helicopter. Saaho saves her with a jet-pack, but is later arrested by the police.
Kalki (Mandira Bedi), the crime lawyer of the underworld, who was with Vishwank the whole time, is revealed to be on Devaraj's side. She accesses the vault with the black box while Amritha locates and chases Alex (Supreeth), a man she met in a bar in Mumbai and whom she thinks helped Saaho with the robbery of Devraj's money, and Ashok meets up with Vishwank.Saaho is taken to Devaraj's village where he battles with Devaraj's goons and defeats them easily. Devaraj arrives, And Saaho reveals to him that he is Siddhant Nandan Saaho, The real son of Roy. Vishwank and Alex also reveal this to Ashok and Amritha respectively and Kalki also witnesses a portrait of Roy and Saaho inside the vault, thereby shocking all of them. Saaho kills Devaraj by cutting off his head. He does this as Saaho was on the phone with Roy when he was killed and he distinctly heard Devraj shooting Roy in the head when Roy was trying to speak to his son.Vishwank was the son of Ibrahim, who was Roy's loyalist and they both were helping Roy avenge his father's death and claim his rightful place on the throne.
Ibrahim reveals Saaho's real identity to the gang members, and Saaho becomes the next kingpin of the underworld. Some months later, Saaho locates Amritha somewhere in Austria and confesses his love for her, and they share a kiss and hug each other. In a distance, a sniper aims at Saaho as he opens his eye to the danger.
