Two Daughters

"Two Daughters" is the second episode of the third season of the American television show Numb3rs. The second half of a two-episode storyline, the episode features the aftermath of a Federal Bureau of Investigation (FBI) Special Agent's abduction, which results in the search for not only the agent and her kidnapper but also for the true motive of the spree killings in the previous episode. As a character development, one FBI Special Agent's actions during the case created a story arc for that character for season three. Series writer Ken Sanzel used the trawler problem, a real-life application used to find traveling boats, as inspiration for the mathematics included in the episode.
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