Elaine gets a physical for a pending trip with Peterman to Africa. Her physical test results show positive for opium, so Peterman fires her. Jerrys parent are in seclusion in New York while biding time until they can move back to Florida. George tries to convince his parents to move to Florida. The shower heads in Jerrys building are being replaced with a new low-flow model; Newman finds a source for black market shower heads. The Seinfelds tell the Costanzas that there is no room for them in Florida that gives Frank all the incentive he needs to move. George is delighted. Elaine finds the cause of her opium addiction and finds a donor for her next physical. Jerry makes a joke on The Tonight Show with Jay Leno at the expense of Uncle Leo and he pays the price for making fun of the family.