A possible concise summary is:
This is a summary of the story of Bioshock Infinite, a video game that involves traveling to different dimensions and cities. The main character is Booker DeWitt, a former soldier who is hired to rescue a girl named Elizabeth from the floating city of Columbia. Elizabeth has the power to open portals to other realities, and she is the daughter of Booker from another universe. She was kidnapped by Comstock, who is also Booker from another universe, but one who became a religious fanatic and founded Columbia. Booker and Elizabeth try to escape from Columbia and its dangers, but they also discover the secrets of their past and their connection to another underwater city called Rapture. The story ends with Booker sacrificing himself to prevent Comstock from ever existing, and Elizabeth dying at the hands of a villain named Atlas in Rapture. The summary also mentions two DLC episodes that expand on the story and show Elizabeth's adventures in Rapture. The summary is narrated in a humorous and informal tone, and it includes some jokes and references to other topics.
Here are the key facts extracted from the text:
1. The text is a summary of the video game Bioshock Infinite and its DLCs.
2. The main characters are Booker DeWitt, a former soldier and private investigator, and Elizabeth, a young woman with the power to open portals to other dimensions.
3. Booker is hired by the Lutece twins to rescue Elizabeth from Columbia, a floating city ruled by the religious extremist Zachary Comstock.
4. Booker and Elizabeth face many enemies and obstacles in Columbia, such as the Vox Populi rebels, the Songbird (a giant mechanical bird that guards Elizabeth), and Comstock himself.
5. Booker and Elizabeth discover that they are from different dimensions and that Comstock is an alternate version of Booker who accepted a baptism and became a fanatic leader.
6. Elizabeth decides to end Comstock's tyranny by traveling to the point of his baptism and drowning him with the help of other versions of herself.
7. Elizabeth loses her powers and gets trapped in Rapture, an underwater city from the previous Bioshock games, where she meets another version of Booker who is a Big Daddy (a genetically modified protector of the Little Sisters).
8. Elizabeth tries to help Sally, a Little Sister who was once her adopted daughter in another dimension, but she is betrayed and killed by Atlas, a rebel leader who wants to overthrow Andrew Ryan, the founder of Rapture.
9. Elizabeth has a vision of Jack, the protagonist of the first Bioshock game, who rescues Sally and the other Little Sisters with her help.