The 99th Precinct and the Chicago PD are a solid team and everyone is rock solid, but when the LAPD moves in with them, the team becomes more dedicated. X-over with B99/CPD/Lucifer
The LAPD is merging operations with the NYPD after their unit gets knocked down, romance and friendships will go on and relationships will be on the line, also exes will be working with them.
The NYPD's 99th Precinct will be merging operations with the Intelligence Unit and Firehouse 51 both in Chicago, making a stronger unit, new bonds, friendships and romances will begin. X-over between B99, CF and CPD, Lucifer in later chapters, No Peraltiago, Deckerstar, Linstead, Upstead, Brettsey or Charles/Genevieve.
Jay Halstead leaves the Intelligence Unit and his wife behind and goes to New York to reunite with the love of his life Erin Lindsay, this has character cameos from Brooklyn Nine-Nine, CSI: NY, The Facts of Life, Law & Order SVU & Organized Crime.
Matt Casey and Sylvie Brett are happy in their relationship as are Jay Halstead and Hailey Upton, what happens when both Gabby Dawson and Erin Lindsay come back to Chicago in hopes of reconciliation, will they get what they want and have Brett and Upton's worst fear come true or will Casey and Halstead stick with the woman they currently have.
Made-up Adrian Sloan is in this, as are Blair and Natalie from Facts of Life. What if instead of Newhouse coming to 51, Shay passes squad certification and joins Squad 3 alongside her best friend, Kelly Severide.
At the same time Five-0 investigates a Russian spy ring, a familiar face returns to Steve's life to help.
Set during Season 3 of 99, Season 1 of Lucifer X-over with Chicago Fire and Facts of Life due to Patterson and Blair. Made up Captain Lansing is in this so is Dallas Patterson from Chicago Fire, Chloe Decker gets transferred to the NYPD for a month to see if the job is perfect, what she didn't expect was to fall for a detective who is her complete opposite and her new partner.
Made up Captain Lansing is in this Info: Charles Boyle is devastated when Genevieve dies, he is left taking care of their son, Nikolaj, until an old girlfriend of his offers to help, will they rekindle the spark they once had or will they burn down for good.
Kelly Severide has been missing from 51 after Shay's death, the only person who can bring him back, one Gabriela Dawson.
The big day has finally arrived, but someone who Severide thought he would never see again turns up at the wedding and a lot happens at once.
Set during Season 2, pre-Sophia Perez Made up Captain Lansing is in this Info: Jake goes on a date with someone from his past, but little does he know, this will cause a war between said person and Amy Santiago.