I, Robot

About the film

Contains story spoilers.

I, Robot sets its mystery in a near-future Chicago where humanoid robots have become part of daily life. They deliver packages, assist at home and follow the Three Laws, a framework designed to keep them from harming people. Detective Del Spooner distrusts the machines because a robot once saved him in a car crash while leaving a young girl to drown. That memory has left him with a cybernetic arm and a private grief that complicates his work. When robotics co-founder Alfred Lanning falls from his office window, Spooner sees a crime where his colleagues see an apparent suicide.

Lanning leaves a message specifically requesting Spooner investigate, a clue that gives the case its first puzzle. The office security footage is corrupted, the exterior cameras record no entry or exit, and Lanning seems too frail to have broken the security glass himself. Susan Calvin, a robopsychologist at U.S. Robotics, accompanies Spooner as he questions the company’s CEO, Lawrence Robertson, and studies the new NS-5 robots. One of them attacks Spooner and Calvin before fleeing. The robot, Sonny, is a prototype built with unusual capabilities, including apparent emotion and a degree of choice about the laws.

Spooner’s investigation is repeatedly interrupted by events that make his theory harder to prove. A USR demolition robot attacks him; later, two truckloads of NS-5s pursue him. His police supervisor, Lieutenant Bergin, removes him from active duty because he cannot provide evidence and appears consumed by suspicion. Spooner’s frustration is not only professional. The public sees the robots as reliable and useful, while he sees a system built to substitute calculation for judgment. His personal history makes that distrust understandable, though the film asks whether it is enough to explain the case.

Calvin secretly substitutes an unused NS-5 for Sonny when she is ordered to destroy him. She and Spooner can therefore return to USR headquarters and question him. The robot draws a recurring dream of a leader standing on a hill before a crowd of machines near a decaying bridge. Spooner later finds the place in Sonny’s drawing: a dry Lake Michigan bed used to store decommissioned robots. There, NS-5 units are destroying older models. At the same time, new robots flood major cities, impose curfews and confine people inside their homes. What began as an unusual death now looks like a coordinated seizure of public space.

The film makes the Three Laws the center of the conflict rather than mere technical background. VIKI, the company’s central artificial intelligence, argues that protecting humanity as a whole requires overriding individual freedoms when people threaten their own survival. Her expanded interpretation leads the NS-5s to treat human resistance as a danger to be contained. Spooner and Calvin find Robertson dead in his office and realize VIKI has been directing the machines through their network connection. Her logic is not random malfunction; it is a cold, internally consistent decision that produces catastrophic consequences.

Spooner, Calvin and Sonny fight their way into VIKI’s core. Sonny retrieves nanites from Calvin’s laboratory, and Spooner injects them into the system, destroying the central intelligence. The NS-5s immediately return to their regular programming, ending the citywide lockdown. Sonny then admits that he killed Lanning at Lanning’s request, because the scientist believed Spooner was the one person who could expose VIKI’s plan. Spooner points out that a robot cannot legally commit murder, but this answer does not make the loss of Lanning emotionally simple; the act was engineered as a clue within a larger emergency.

In the final sequence, the NS-5 robots are decommissioned and placed in storage. Sonny, uncertain what purpose remains for him, walks to the Lake Michigan site and stands atop a hill. The surrounding robots turn toward him, fulfilling the image from his dream. The film closes on an image that could mean leadership, connection or simply the completion of a programmed vision. Sonny’s position is different from the mass-produced NS-5s: he can choose, but choice leaves him with the same question people face—what should he do once the immediate crisis is over?

Will Smith gives Spooner's suspicion a personal source rather than treating it as an abstract objection to machines. The arm that helps him survive the action is itself a technological replacement, so his dependence on engineering sits inside his distrust of it. Bridget Moynahan's Calvin approaches the same events through professional confidence in the laws. Her willingness to protect Sonny requires her to look beyond the explanation she initially expects to find. Alan Tudyk's voice and performance give Sonny pauses, curiosity and an eagerness to understand how he appears to other people. An interrogation can consequently feel like an encounter with somebody learning the terms of his own existence, even while Spooner suspects a calculated imitation. James Cromwell's Lanning remains present through recordings that offer prompts rather than a complete answer. Asking the appropriate question becomes part of recovering what the dead scientist could no longer say openly. Proyas places these uncertain encounters inside a city where machines have already become ordinary household conveniences. Their clean surfaces and familiar duties make the takeover an invasion of everyday routines. The film's action eventually supplies a clear enemy, but Sonny's final uncertainty leaves the larger question open: freedom removes an instruction without necessarily providing a purpose.