The school hosts a "20/20 VisionBee", unfortunately Clarence gets blinded by getting mud in his eyes.
Clarence's classmates are playing in the park while Clarence is playing with his toys Mr. Sausage and Robofrog when he says he throws a dream spell and falls asleep. The bell rings and all Clarence's classmates go to class, Clarence falls asleep. Then Miss Baker shows the class an educational video about the Sun, Miss Baker realizes that someone is missing, when Belson realizes that Clarence is still outside, he closes the blinds and says that Breehn is out sick. After Clarence awakens when a nut falls on his head and spits out all the mud he brings in his mouth, he realized that he could not see anything because there was mud in his eyes and he fell back into the mud puddle and he assumed that his eyes sealed with fur as he took a nap and tries to find the way to his class but collides with the games in the park. In class Ms. Baker says that the spelling contest is cancelled which Jeff gets very disappointed and instead must take a vision contest. Ms. Baker distributes some posters of the competition "Vision Bee" and Jeff says it is unfair because only some people see better than others, then Kimby says she finds it fun and many more in the class say they like the idea. Meanwhile, Clarence continues to collide with everything and supposes that they are other objects, this one falls and meets with Mr. Reese who asks if it does not have to be somewhere. While the rest of the class were getting ready, Jeff and Sumo were choosing the name of their team and Jeff wondered where Clarence was to find him. Clarence is close to a few younger children and then meets Jeff, Clarence touches his face, he says that he stops playing and tries to remove the mud from his eyes, but Clarence will not let the mud out and he takes Clarence out of the way, Clarence runs out of his shirt, then he puts on his T-shirt and they find Sumo who had already chosen a name for the team: "Sumo and the laser twins" Clarence recognizes him by his voice, Jeff tells Clarence to wash his face, but he did not do as Jeff told that he is still blind and Sumo argued with Jeff because he shouted at Clarence. Jeff, angry, said that he just wants to win the competition, Sumo tells Clarence that both of them will win. Meanwhile, the competition taken in the school gym, where just as Belson's team finishes. Sumo and Clarence were up next, but they were not prepared as Jeff was not there and Miss Baker says they have to be three per team but they were only two and they are disqualified, all the sudden, Jeff enters with a strange suit and says to have the cure for Clarence, El Famoso Elixir of Dr. Jeff, which is a water spray that can clear the mud of Clarence's eyes, Clarence could read the letters perfectly, Sumo and Jeff celebrated, but each one has to read the letters, then Jeff had to read the letters but he saw everything appeared to be blurred out and could not read the lyrics so his team lost. It ended with Jeff in disappointment.
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