When a teenaged boy whose family has recently fallen on hard times is found dead in a boat in Central Park, Castle and Beckett must piece together the mystery behind the boy's final moments. Meanwhile, Castle mulls over leaving Martha home while he chaperones Alexis' trip to Washington, D.C.
After discussing Bruce Willis' wedding at length, Dave mentions that he married his longtime girlfriend in a private ceremony this past weekend, than explains all the obstacles he faced on the way to the courthouse; an update on George Clarke and the Late Show Weight Loss Challenge; Hugh Laurie plugs Monsters vs. Aliens; Sarah Paulson does impressions; Bloc Party performed "One Month Off."