Castle (2009)
S01E09 Little Girl Lost
Episode Overview
A two-year-old girl goes missing from her home, prompting Beckett to join the investigation. She soon realizes that the lead FBI agent is her ex-boyfriend. As they work together to locate the child, they struggle to navigate their lingering emotions. Meanwhile, Castle decides to get involved, igniting a rivalry for Beckett's focus and complicating the search for the little girl.