Principal photography for Saaho began in August 2017. Filming took place in India, United Arab Emirates, Romania and Austria.Produced on a budget of ₹350 crore, it is one of the most expensive Indian films ever produced. The film's soundtrack was released under the banner T-Series. Saaho was released in India in theatres and IMAX on 30 August 2019.
The film received generally unfavorable reviews and grossed 450+ crore at the worldwide box office
.Narantak Roy, the crime boss of Waaji City's underworld, is killed in a deliberate car crash in Mumbai. Devraj, the son of a former crime boss, declares himself the next leader of the crime syndicate; he is supported by some members but opposed by the rest. Ibrahim reveals to Kalki, legal advisor of the Roy group that Roy's family has been killed and he has been raising a secret for 25 years when he was alive. The secret was that he had a son who survived named Vishwank. Vishwank foils Devraj's 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.
Roy had to set up a hydroelectric plant in India but was opposed by the external affairs minister of India. However, he manages to get the permission signature on a letter from him. Then, the gangsters' money is on a ship that gets destroyed in a bomb blast.
The story then turns to India, where a mastermind steals about two trillion rupees with ease. A nationwide manhunt ensues to find the culprit. Undercover agent Ashok Chakravarthy is assigned as head of the manhunt task-force. Although he initially refuses, he relents after finding out that Amritha Nair, a woman whom he is infatuated with, will also be on the task-force. The task-force uncovers the whereabouts of a thief named Jai and traps him during his next robbery, after Amritha and Ashok fall in love. They let Jai take a black box that Vishwank introduces to Kalki and others and that can open his locker containing treasures at a secure building in Waaji City.
Later, there is a chase in which Amritha, Ashok, and David (a hacker) confront Jai at a bridge. It is then revealed that the thief was real Ashok and the officer who was with them is Saaho, who is the actual person committing the robberies and Jai was actually the undercover police officer Ashok Chakravarthy. As Saaho escapes with his partner David, Amritha, along with the entire Indian police department, is stunned.
Afterward, it is revealed that Devraj killed Roy in order to gain power and that the money of the gangsters is with him and that he was the one who planned the blast. Amritha then tracks Saaho and pretends that she is still in love with him but is actually helping Ashok. Meanwhile, Amritha actually falls for Saaho and betrays Ashok. Saaho takes Amritha to different places, which are nothing but the drawings in Amrita's book which Saaho saw when they were in Mumbai. Even after this, Amrita feels that they are opposite and can never be one but Saaho clears that and when he tries to kiss her, she is shot and taken away by Devraj. Saaho is forced by Devraj to give him the black box but later betrays him as he strikes a deal and gives the black box to Vishwank. Saaho also destroys Devraj'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 who was with Vishwank the whole time is revealed to be on Devraj's side. She goes to the vault and opens it with Vishwank's fingerprint which she had stolen it earlier. She accesses the vault with the black box and finds pictures of Roy and his son. She also finds a copy of the Bhagavad Gita, thus revealing Roy's two most precious things in the vault, meanwhile Amritha locates and chases Alex, a man who ran away seeing her in a bar in Mumbai and Ashok meets up with Vishwank.
Saaho is taken to Karana village by Shinde, where he battles with Devraj's goons and defeats them easily. Devraj arrives, and Saaho reveals to him that he is Siddhant Nandan Saaho, the real son of Roy. He also reveals to Devraj that he did this to avenge his father's death. Vishwank and Alex also reveal this to Ashok and Amritha, respectively. Kalki also witnesses a portrait of Roy and Saaho inside the vault, thereby shocking all of them. After all of this, Saaho kills Devraj, thereby avenging Roy's death.
Ibrahim reveals that Vishwank was not Roy's son, but was his own son and his real name was Iqbal. He then tells them that Iqbal was there to save Roy's throne. He also reveals Saaho's real identity to the gang members, and Saaho becomes the next king of the underworld. Months later, Saaho locates Amritha in Innsbruck, Austria and confesses his love for her; they share a kiss and hug each other. In a distance, a sniper aims at Saaho as he opens his eye to the danger, hinting at a potential sequel for the movie.