Diamond Jack is the third episode of Season 7 of Three's Company, and the 131st overall episode of the series. Written by Ellen Guylas and directed by Dave Powers, it first aired 19 October 1982 on ABC.
Summary[]
Jack is expecting a call from a blind date that Larry has arranged. Rita, who is a jewel thief, calls Jack's number by mistake and leaves a message on their new answering machine asking him to meet her at the Venice Roller Rink. Thinking that Jack is a fence, Rita slips a pouch of "hot" diamonds in his pocket and sets a date to meet him at his place later that evening.
The trio discover the diamonds just before "Rita" and her partner arrive demanding their money. The trio pretends to go along with the scheme while devising a plan to escape, but not before the cops come to arrest them all, including the trio. Larry arrives and attempts to clear up the situation by saying that the lovely brunette, which Jack mistook for the blind date Rita on the phone, which was actually the wrong number, not the intended blind date, but he only succeeds in being arrested as well.