 Kate first encounters Gibbs' team as a United States Secret Service special agent assigned to the Presidential Protection Detail on Air Force One.During "Yankee White", Kate resigns from the Secret Service before her superiors fire her for disobeying the fraternization rules; NCIS Special Agent Leroy Jethro Gibbs recruits Todd almost immediately and assigns her to his team, pairing her with Anthony DiNozzo.She quickly becomes a key member of the Gibbs-led Major Case Response Team (MCRT) based at the NCIS headquarters in Washington, DC.