Luger's mail-order bride arrives; an elderly woman mugs a man.

The 12th Precinct is sold; Dietrich arrests the head of a crime school; Luger tries to duck out on his mail-order bride.

Friends, foes and felons alike drop by to pay their last respects as the detectives prepare to leave for new assignments; Harris contemplates his resignation when he's assigned to Flushing Meadows; Barney recalls friends departed before he turns out the squad room lights for the last time.