Synopsis by Hal Erickson
Don Porter, best known to TV buffs for his work as Ann Sothern's boss on Private Secretary and Sally Field's father on Gidget, guest stars as Jack Tripper's highly untrustworthy Uncle Fremont. Immediately charming his way into the hearts of the Ropers, Fremont not only successfully inveigles Mr. Roper (Norman Fell) into giving him a loan, but he also pays off the roommates' rent -- with a rubber check. A frenzied Jack (John Ritter) must figure out a way to get the check back from Roper before it can be cashed.
apartment, check, mix-up, payment, roommate, trio, uncle