After a leader of the art world buys Marlon's paint-smeared dropcloth, Marlon turns into a temperamental artist, much to Shawn's disgust. But Marlon's artistic career hits a snag when Lou catches a vandal putting graffiti on Pops' diner: the art patrons become so impressed with the graffiti artist that they abandon Marlon.

It's decision-making time for Shawn when Mrs. Niedermeyer, the owner of the building where his newsstand is housed, makes a pass at him, and Shawn must decide whether he will return the attention to keep his lease intact. While Mrs. Niedermeyer is beautiful, she's also got a jealous husband. Shawn is torn between doing what's right and saving his newsstand.

Marlon's acress friend Stacey convinces him to help her audition for the Tisch School of Performing Arts. Marlon begins to consider an acting career for himself -- an idea that Shawn thinks is ridiculous and unrealistic. Pops helps Shawn come to see that he should be offering Marlon his support, not doubting his abilities. Meanwhile, Marlon uses the anger from his argument with Shawn to fuel his performance in the audition and ends up getting a scholarship. Special appearance by NBA star Brent Barry

Marlon slips in Shawn's spilled coffee and breaks his leg, which knocks him out of the cash prize he was sure to win in a dance contest. Marlon sues Shawn in small claims court for the two grand, but in the end admits all he really wanted from Shawn was an apology.

Shawn and Marlon let Grandma move in, then plot to drive her out after she cramps their bachelor lifestyle. The problem: she won't take a hint.