When it wrecked us: Season four, episode 24 ("Papa's Got a Brand New Excuse")
Why it wrecked us: This is undoubtedly the most poignant, heartbreaking scene from the series. When Will's deadbeat father, Lou, comes back into the picture, the two seemingly start to become close. Will is happy to have his dad back in his life after years of absence, but his joy dissipates when Lou leaves again. Will attempts to brush it off in front of Uncle Phil, but breaks down in tears, asking, "How come he don't want me, man?" Uncle Phil then consoles Will with a hug.
During The Fresh Prince of Bel-Air's reunion special on HBO Max, Smith opened up about sharing that special moment with his late costar James Avery, saying, "I fall into his arms at the end of the scene, and he's holding me, and, you know, the shot pans off, and he whispered in my ear, 'Now that's acting.'"