Phineas and Ferb: O.W.C.A. Files (TV)

O.W.C.A. Files is an hour-long special on Disney XD after the series finale. While the episode was set to air during the regular season, it was later announced by Disney on May 7, 2015 that the show would end with Last Day of Summer on June 12, 2015, and that the episode would air as a stand-alone special on the Disney XD network.