The film should start off in 1828 when India was under the rule of the East Indian Trading Company. For sometime, countless yet unexplained accidents have claimed the lives of several British officers at Shaniwar Wada Fort in the Pune Providence because Lord William Bentinck, the Governor-General of India at the time, has been forcing the idea of Westernization on the Hindu community.

Bentinck refuses to submit to the superstition that has been plaguing his soldiers or the bloody retribution brought by the inhabitants that strongly resisted the changes to their culture. Bentinck is then approached by Jonathan Tremont who represents a sect of the Church of England known only as the Triune Understanding. The Triune Understanding is infamous for their unorthodox methods of conversion and Tremont assures Bentinck that order will be restored.

A group of Hindu occultists react to Tremont's despicable treatment toward the providence by opening a gateway into the Dark Dimension through the use of the soul gem and a spell from the Darkhold. They intend to use Dormammu to exact their revenge on Tremont and Bentinck but the occultists fail to realize that Dormammu's evil is beyond their control. The Ancient One arrives and uses the power of Agmotto and the Vishanti to steal the soul gem before Dormammu can claim it.

In a fit of rage, Dormammu causes the entire fort to go ablaze before being sucked back into the Dark Dimension. During the fiery chaos, the Ancient One looses sight of the soul gem. Tremont gets a hold of the gem and brings it back to England in order to study it. Over the centuries, the Triune Understanding has evolved into the Church of Universal Truth and Tremont has transferred his soul into a new body while soul of his victim is transferred into his dying body.

As far as Tremont can tell, the soul gem not only allows the user to steal souls or inhabit another person's body but the soul gem acts as a repository of lives that have come into contact with the gem. Tremont intends to create the perfect being incapable of any flaws unlike himself. However, Tremont realizes he must rely on science in order to create the perfect body to harness the soul gem. Tremont approaches the Enclave, the science branch for SHIELD at the time and they create the perfect being. The Enclave however, didn't want their creation to be abused by Tremont's twisted machinations of perfection.

Tremont sends his operative the Black Knight to eliminate the Enclave scientists and claim his prize. The Enclave scientists use the power of the Tessaract to send the cocoon of their perfect being far from Tremont's reach. The cocoon eventually falls into the hands of the Collector and there it stays until the explosion at the Collector's emporium. The Enclave's creation awakens and the erratic presence of the soul gem alerts Tremont and Dormammu.

Tremont beckons the user of the soul gem to return to Earth and acknowledge his destiny. The creation hijacks a ship on Knowhere and heads to Earth. Tremont informs the Black Knight to prepare for the creation's arrival while Dormammu's followers to exact same thing. The creation's abrupt arrival in New York causes Stephen Strange to get into a car accident which in turn causes him to lose the surgical prowess in his hands. Wong and Scarlet Witch rescue the creation from the Black Knight and Magus the Pagan, who is a manifestation/ personification of Baron Mordo.

The Ancient One tries to console the creation by asking what he remembers. The creation recalls a group of men talking about how his birth will impact the world. One of the men called the creation "Adam". Adam then remembers a discussion between the Collector and a group of people. The Collector mentions the Infinity Stones but then the discussion became an argument between the Collector and his servant. The last thing Adam remembers is the screams of a woman in pain and then a flash of light which released him from the cocoon.

The Ancient One realizes that Dormammu and Tremont will attack the Sanctum Santorum with everything they got but the Ancient One is too weak. He must find a suitable Sorcerer Supreme. Unfortunately, Scarlet Witch is to unsure of herself and Wong is more of a follower and a teacher rather than a leader. It's at that moment that Wong mentions that Stephen Strange notice the fight between the opposing forces when Adam was rescued. The Ancient One feels that Stephen Strange maybe the next in line to be the Sorcerer Supreme.