Bioshock Infinite Gameplay Part 8: The End
Booker enters Comstock House, which apparently has been transformed into some kind of insane asylum. Booker make his way towards the chamber where Elizabeth is being held. Booker learns through audio recordings that she was tortured and conditioned through various treatments to turn into Comstock, spouting his religious propaganda and blindly believing in his plan. It has now become apparent that Booker has not entered another reality, but rather gone forward in time. When Booker finds Elizabeth, she is an elderly woman and has apparently put Comstock's plan in motion, using the technology of Columbia to wage war on the world below, cleansing the world as God did with the Great Flood. The elderly Elizabeth had regained her senses but was too late to stop what she had started, and so used the last of her power to transport Booker forward in time. She explains that in every reality Songbird prevented Booker from saving her, rendering Elizabeth's transformation and the holy war inevitable. By transporting Booker ahead in time, he could bypass Songbird and enter Comstock House. Now that he has found Elizabeth, she can return him to 1912 so that he can rescue her before her transformation. Before she does so, she hands him a piece of paper with instructions for 1912 Elizabeth. After being returned to 1912, Booker rescues Elizabeth and the two set off to confront Comstock. They make their way onto his airship and fight their way to his inner sanctum. Here they discover that a machine (known as the Siphon) on Monument Island has been controlling Elizabeth's power and limiting what she can do. Upon finding Comstock, he tells Elizabeth that Booker has been lying to her about who he is. Booker, having grown to hate Comstock for everything he has done to Elizabeth, kills him in a sudden burst of anger before Comstock can say anymore. In order to prove his innocence, Booker decides that they should destroy the Siphon so she can see into the past and discover the truth for herself. As they travel back to Monument Island, they are beset by Vox forces. Using the instructions, Elizabeth is able to call Songbird and recruit him to their side and help fight the Vox. After a tense air battle, they make it to Monument Island and use Songbird to destroy it, freeing Elizabeth and unlocking her full power. With her power, Elizabeth transports them both to the underwater city of Rapture, which she says holds a door they must go through. They go to the surface via bathysphere and enter the door of a lighthouse. Upon opening it, they find themselves in a sea of infinite lighthouses. Elizabeth call this the Sea of Doors, a place where one can access any of the infinite realities in existence. All of them have similarities and differences, constants and variables as Elizabeth calls them. One constant in all of these realities is that there is always a man, a city and a lighthouse. They open the door to Booker's reality, and by travelling back in time they are able to uncover the truth about Booker: his memories have been false this entire time. In truth, what happened was that Booker sold his daughter, Anna, in order to pay off his debts. The man he sold Anna to was Father Comstock, and the man who came to collect Anna was Robert Lutece. This means that Elizabeth is Booker's daughter. Booker had a change of heart and tried to take Anna back. He was able to catch Comstock and Robert as they were about to enter a tear back into their dimension, and in the struggle Anna's finger was caught in the current reality as the tear closed, cutting it off. 20 guilt-filled years later, Booker was given a chance of redemption by Robert Lutece, who realized that stealing Anna into their dimension somehow disturbed the natural order and was causing rifts in their reality (explaining the presence of tears in Columbia). He recruited Booker to rescue Elizabeth and bring her back to his own reality to return things to the way they were. After he transported Booker through a tear to their reality, a strange event occurred in which Booker's memories were rewritten. He forgot the last 20 years had happened, and believed that he was rescuing Elizabeth to pay off his gambling debts, not to redeem his past mistake. This is why Booker doesn't remember anything. Realizing that selling Anna to Comstock is the event that leads to all the pain and suffering in the future, Booker concludes they must kill Comstock right as he is born. Elizabeth brings Booker to the moment when Comstock was born, revealing the final truth: in an alternate reality Booker received a baptism to wash away his past mistakes, becoming reborn as Comstock. Booker allows himself to be drowned at the baptism, cutting off any possibility of Comstock being born. A post-credits scene reveals that there is still a reality where Booker is alive. Either Booker and Anna are able to live a happy life together free from debt, or there is still a possibility of Comstock returning.
Booker enters Comstock House, which apparently has been transformed into some kind of insane asylum. Booker make his way towards the chamber where Elizabeth is being held. Booker learns through audio recordings that she was tortured and conditioned through various treatments to turn into Comstock, spouting his religious propaganda and blindly believing in his plan. It has now become apparent that Booker has not entered another reality, but rather gone forward in time. When Booker finds Elizabeth, she is an elderly woman and has apparently put Comstock's plan in motion, using the technology of Columbia to wage war on the world below, cleansing the world as God did with the Great Flood. The elderly Elizabeth had regained her senses but was too late to stop what she had started, and so used the last of her power to transport Booker forward in time. She explains that in every reality Songbird prevented Booker from saving her, rendering Elizabeth's transformation and the holy war inevitable. By transporting Booker ahead in time, he could bypass Songbird and enter Comstock House. Now that he has found Elizabeth, she can return him to 1912 so that he can rescue her before her transformation. Before she does so, she hands him a piece of paper with instructions for 1912 Elizabeth. After being returned to 1912, Booker rescues Elizabeth and the two set off to confront Comstock. They make their way onto his airship and fight their way to his inner sanctum. Here they discover that a machine (known as the Siphon) on Monument Island has been controlling Elizabeth's power and limiting what she can do. Upon finding Comstock, he tells Elizabeth that Booker has been lying to her about who he is. Booker, having grown to hate Comstock for everything he has done to Elizabeth, kills him in a sudden burst of anger before Comstock can say anymore. In order to prove his innocence, Booker decides that they should destroy the Siphon so she can see into the past and discover the truth for herself. As they travel back to Monument Island, they are beset by Vox forces. Using the instructions, Elizabeth is able to call Songbird and recruit him to their side and help fight the Vox. After a tense air battle, they make it to Monument Island and use Songbird to destroy it, freeing Elizabeth and unlocking her full power. With her power, Elizabeth transports them both to the underwater city of Rapture, which she says holds a door they must go through. They go to the surface via bathysphere and enter the door of a lighthouse. Upon opening it, they find themselves in a sea of infinite lighthouses. Elizabeth call this the Sea of Doors, a place where one can access any of the infinite realities in existence. All of them have similarities and differences, constants and variables as Elizabeth calls them. One constant in all of these realities is that there is always a man, a city and a lighthouse. They open the door to Booker's reality, and by travelling back in time they are able to uncover the truth about Booker: his memories have been false this entire time. In truth, what happened was that Booker sold his daughter, Anna, in order to pay off his debts. The man he sold Anna to was Father Comstock, and the man who came to collect Anna was Robert Lutece. This means that Elizabeth is Booker's daughter. Booker had a change of heart and tried to take Anna back. He was able to catch Comstock and Robert as they were about to enter a tear back into their dimension, and in the struggle Anna's finger was caught in the current reality as the tear closed, cutting it off. 20 guilt-filled years later, Booker was given a chance of redemption by Robert Lutece, who realized that stealing Anna into their dimension somehow disturbed the natural order and was causing rifts in their reality (explaining the presence of tears in Columbia). He recruited Booker to rescue Elizabeth and bring her back to his own reality to return things to the way they were. After he transported Booker through a tear to their reality, a strange event occurred in which Booker's memories were rewritten. He forgot the last 20 years had happened, and believed that he was rescuing Elizabeth to pay off his gambling debts, not to redeem his past mistake. This is why Booker doesn't remember anything. Realizing that selling Anna to Comstock is the event that leads to all the pain and suffering in the future, Booker concludes they must kill Comstock right as he is born. Elizabeth brings Booker to the moment when Comstock was born, revealing the final truth: in an alternate reality Booker received a baptism to wash away his past mistakes, becoming reborn as Comstock. Booker allows himself to be drowned at the baptism, cutting off any possibility of Comstock being born. A post-credits scene reveals that there is still a reality where Booker is alive. Either Booker and Anna are able to live a happy life together free from debt, or there is still a possibility of Comstock returning.