A smooth-talking scam artist cons Eddie and Waldo into patronizing an exclusive sports bar (the Ace High Lounge) where the Chicago Bulls hang out. After ignoring Steve's warning not to go inside because he suspected foul play, the con-man leaves them with an expensive bill and Eddie must get help from Carl. Meanwhile, Myra tries to help Laura with an all-natural zit-removal mask, but accidentally mistakes Urkel's super glue for milk.
Eddie prepares to take a drink of a new milk, but Steve stops him. He tells Eddie that not milk, but a new super-glue creation he invented and also warned it may cause problems in the colon. After they leave for the Bulls game, the warning that was stuck to the refridgerator door warning everyone not to drink the glue, goes under the table as Laura comes in with Harriette, complaining about the zit on her forehead on the night she has to go out with Curtis.
After the game, Eddie, Waldo and Steve are on their way home when a smooth talking owner invites them to patronize The Ace Lounge, an exclusive sports bar. He promises them a chance to meet the Chicago Bulls inside and claims they come in to his bar all the time. Eddie and Waldo are excited at the chance to meet them. However, Steve is skeptical of the owner's claims and refuses to go inside, suspecting he could be a con artist. He warns Eddie and Waldo not to enter the lounge. When Eddie asks why, Steve reveals his suspicions on the owner being a con artist and suggests they go home right away. Urkel also mentions that he and Waldo are both underage and can't be allowed inside by law. Eddie reassures Steve they'll be fine because he's over 21 and he goes inside with Waldo, hoping for the chance to meet the players from the Bulls. Urkel shakes his head in disgust and heads home.
At the house, Myra offers to help Laura with her zit problem with a homemade cream mask that her mother taught her. She accidentally mistakes Urkel's super glue invention for milk and Laura's face is stuck in the dried mask. When Steve comes home, he discovers that Myra has used his super glue and tries to get it off her face before Curtis arrives.
At the Ace Lounge Bar, things seem to be ok and Eddie and Waldo are relaxed. This is until the man leaves them with an expensive bill. It was then, Eddie realizes that Steve's warning against going inside the bar was best heeded because his suspicion of the owner being a con aritst was proven true. He tells Waldo to go get help from Carl, but lie to him about having a car accident. He leaves, while Eddie ponders what to do when the owner arrives with his bouncers.
In the living room, Carl and Estelle are playing a parody version of Mortal Kombat with themselves as characters. Waldo comes in and tries to tell them about the car accident story. However, Carl doesn't believe him and asks him to tell the truth. Waldo tells him the truth about Eddie and himself going inside a bar, which he remembers Steve warning them against going inside. He reveals that the owner is a con artist and Carl takes action by leaving to confront him.
In the kitchen, Laura is distraught and believes that Curtis will run from her the moment he arrives. In her frustration, Laura punches the dry mask, which fall off quickly revealing her face free from the zit. Steve makes a mental note the next time he makes super glue again, he better put the warning on the bottle.
At the Ace High Lounge, Carl arrives to confront the owner and talks to Eddie. He tells his father everything before confronting the owner. Carl immediately confronts the owner about the expensive bill. He basically tells him that if he wants to complain, then go to the judge. Carl quickly tells the owner off that misleading people into patronizing his bar is a bad decision and also mentions Eddie's friend, Waldo, is underage and by law he couldn't be inside. He reveals himself as a cop and has the owner arrested with a couple of officers. After recovering the loss of money, Carl berates Eddie for his lack of judgment as they exit the bar. Eddie quickly realizes that he has to apologize to Steve for not heeding his warning about the owner in the first place.