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When an ice cream vender is shot, evidence leads Beckett and Castle to believe that an unknown second-grader may have vital information about the case. Castle goes undercover at an elementary school to try and identify the second-grader but nothing goes as planned.
First Air Date : Mar 09, 2009
Last Air date : May 16, 2016
Episode : 173 Episode
Season : 8 Season
Runtime: 45 minutes
Studio: ABC
Country: United States of America