 When Tracy tells Carla that her motive towards the fire was that she was jealous of her and that she still wishes Carla had died in the fire, Carla drives back to the street and the police arrest Tracy.However, Tracy is later released without charge.Nick proposes to Carla and she is shocked to learn that Aidan used his father, Johnny's money to buy into the factory, and thus Johnny and Aidan's sister Kate move to Weatherfield and begin working there.