When Buck left the Navy Seals he went to Chicago and became a firefighter. While in Chicago, Buck started at FireHouse 51 where he met Kelly Severide and fell in love with him. Two years after asking out Severide, Andy Darden dies and Kelly gets hurt and goes off the deep end but they get through it. A lot happened Buck and Kelly got married but when Shay dies everything changes. Kelly goes off the deep end again but it's worse this time. Buck tries to help but Kelly keeps pushing him away so one day Buck goes to Cheif Wallace Boden and asked to be transferred to another station in LA. When he tells Kelly to see if he will stop him, he doesn't. Kelly lets the love of his life and husband walk out the door with his wedding ring in Kelly's hand. When Buck gets to LA he joins FireHouse 118 and changes himself. This is the Story of how Evan "Buck" Buckley-Severide became Evan "Buck" Buckley All rights go to Fox and the show creators of 9-1-1 and Chicago Fire