Tommy is Joel's own brother. From the very beginning of PART 1, she appeared at the scene and escaped with Joel's father and daughter. For so many years, she struggled to survive on and off, and now their feelings are self-evident. However, in the end, my brother was brutally killed a few feet away from him, but there was nothing he could do, and his inner anger and grief were no less than Ellie's. His revenge motive will only be stronger than Ellie's. At the beginning of the epidemic, he witnessed Joel's loss of his beloved daughter. He knew and understood Joel's feeling of treating Ellie as his own daughter.

American Doomsday 2 is an orthodox sequel to American Doomsday, which was secretly developed by the famous studio, the naughty dog team 2, for two years. It tells the story that Ellie, the protagonist in the previous work, went to find and destroy the firefly, an opposition armed group.