So 4 teenagers from suburban america 15 year old 5'11" white Anthony Arsnik, 5'10" 16 year old black Jordan Jackson, 17 year old 6'2" black Sheldone Croatio, and 15 year old 5'9" Casey Rulluer, come through a tear in Columbia, They are forced to team up with Elizabeth and Booker in order to get back home battling Comtsocks forces through the city terrain during its downfall, Elizabeth gets captured by Comstock and her memory prior to Booker freeing her is erased and she's put back in the tower, Booker is captured as well and brainwashed into a killing machine. They meet up with a handyman who can't speak named Manny and he agrees to help them on there journey, Manny disappears during a fight with songbird and They free Elizabeth from her tower, afterwards there on the run from Comstock hiding in Shantytown, They adopt jobs and a normal life for about 3 days until they're forced out of hiding again, Comstock sets a trap for them using Manny as bait and they have to fight the brainwashed Booker and free him from his masters grasp, Manny comes back to them as well and they successfully evade capture. Afterwards they decide to take the fight to Comstock, This entire time the Luteces have been appearing and helping them through there journey. They enter the luteces old lab and jury rig a machine to turn Manny into a 6'5 african american human with blue eyes. Anthony begins to hear voices telling him to kill the others and the cause is ignored and unexplained, They siege Comstock House and then board his zepplin and hunt him down, except they find his corpse and he had took his own life in fear of being killed by booker and the others, The luteces appear and confront them on the fact that they screwed up the timeline and call them a failed attempt, afterwards they explain why the teens are there and how they effect whats happening, They explain that there is no need for them anymore and they must be exterminated so they the luteces can restart there experiment. In which case Elizabeth opens a tear and they run for there lives, The luteces last words were "sequimur te in finem mundi." which is latin, Elizabeth attempted to translate it before Booker pulled her through the tear closing it and sending them to an unknown location... There's infinite possibilities.
(Feel free to check out the first book Infinite Tears, Its on my profile, Its long and a bit dull in the introduction chapters but believe me its worth it!)