"Havana Wild Weekend" is the seventh episode of Season 28.
When the Retirement Castle and the V.A. Hospital can't solve Grampa's health issues, the Simpsons plan to take a family trip to Cuba in order to get cheap medical care.
The Simpsons are watching TV when Homer observes a pee stain in the carpet. He immediately blames Santa's Little Helper, but to their surprise, Grampa confesses that it was actually him. The family realizes that he is not so healthy, so they take Abe to the Retirement Home, but the best they can do is to dump him on Skid Row. They try taking Abe to a V.A. hospital, but his appointment is scheduled to twenty three years in the future.
Another veteran in the hospital oversees Abe's situation and tells him that the best health care he can get is in Cuba, but even there the Doctor was unable to provide any help. Abe was losing hope, to the point where he hugged Maggie goodbye, but while Abe is walking down the street, he admires a classic car. The owner offers Abe a ride which makes him feel much younger and able to enjoy Cuba a lot more.
At a bar, Abe meets a waitress who wants to hook with him later. He also encounters a friend from the army, who takes him to see a plane that he hijacked. The veteran plans on joining with Abe to make a party inside the plane. When Abe gets back to the hotel, he confronts Homer, saying that he wants to stay in Cuba.
Abe went to the party on the airplane with other war veterans, but Homer managed to track him down with the help of the U.S. Embassy. The bar's waitress seduces Abe into the cockpit, and reveals that she is a secret agent working for the CIA to transport fugitives back to Miami. Back in the USA, Homer and Abe reconcile and plan to go to a golf course along with Bart to scare the golf players.
The production code of the episode is seen on the license plate of a car in Cuba.
The Simpsons Fall In Love With Cuba Season 28 Ep. 7 THE SIMPSONS
Grampa Simpson Has A Cuba-Gasm When He Sees An Old Car Season 28 Ep. 7 THE SIMPSONS