Things change after the station is bombed in season 11, causing Tom to go off the rails. Now consumed by his desire for revenge, he becomes vitriolic, angry and downright brutal. Where once he was one of the best-loved men in town, he becomes the kind of person who nearly drowns a girl, and who gate-crashes a funeral to taunt a suspect. These changes cause him to abandon friends and come very close to wrecking his career. His cancer diagnosis in the final season sees him begin to open up, and glimpses of the old Tom Croydon appear again as he befriends a fellow cancer sufferer and tries to help her during her final days.