As a new transfer to the 118 fire station over two thousand miles away from her home, Kassidy Hernandez stops at nothing to prove to her new team and captain that she's got what it takes to be a noble edition to the team. She adapts to her new life in Los Angeles fairly quickly, making friends turned family along the way. Though Kassidy is a closed off person, her new team starts to discover things of her past by breaking down the high barrier she had built herself. Kassidy tries to come to terms with her past troubles, and wants to learn what it's liked to be loved again -- and one firefighter in particular has a mission to bring out the heart of gold she once portrayed so proudly. Through trial and error, love and hate, and finally learning to trust again, her story unfolds right where she knows she's meant to be-- the 118.