In the 17th episode of Season 2, titled " The Longevity Initiative (No. 97) ," the storyline splits between a hunt for a "mad scientist" and major developments in the main characters' personal lives. The Case: The Longevity Initiative
After escaping from German enemies and his former handler, "The Major," Tom returns to Washington, D.C.. The episode ends with him appearing at Liz’s apartment, telling her he has nowhere else to go. [S2E17] The Longevity Initiative
It is Liz's 31st birthday (though some sources note a discrepancy where she might be turning 30). Red gives her a bottle of wine made from grapes she once harvested with her adoptive father, Sam, highlighting his long-standing presence in her life. In the 17th episode of Season 2, titled
Red eventually tracks down Powell, hoping the doctor can help recover Liz's lost memories of the fire. However, Powell admits his research failed, and he commits suicide in front of Red. Personal Storylines The episode ends with him appearing at Liz’s