What is the title of the episode where Will's father returns?

The episode in which Will's father returns is titled “Papa's Got a Brand New Excuse.” It is the 24th episode of season 4 of The Fresh Prince of Bel-Air, and it originally aired on May 9, 1994.

In the story, Will recognizes his biological father, Lou Smith, at the restaurant where he works. Lou has been absent for 14 years, but he suddenly wants to reconnect with his son. Will is eager to believe that his father has changed, while Uncle Phil and Aunt Vivian remain wary because they remember Lou's earlier abandonment.

Lou eventually breaks a promise to take Will on a cross-country trip, leaving Will devastated. The episode is especially remembered for the emotional scene in which Will asks why his father did not want him. Ben Vereen played Lou Smith, and the episode is widely regarded as one of the series' most dramatic and memorable installments.