In this scene they are getting ready to introduce him to a new test the test is with a mouse named Algernon the test is to see who can complete the maze the fastest.
After the test with Algernon Charlie was very mad so he decided to go to work where his friends were. He went inside and realized that people were saying pulled a Charlie gordon but he didn't think anything of it and just laughed away.
After the day had pasted he went backed the next day and they continued to do tests to test how smart he is and to see if he can think for himself. He kept failing tests but he was determined to be smart so he got better with time.
Charlie was getting prepared for the surgery everyone was giving him good luck and there hopes that it worked. After the surgery it took charlie three weeks before he got smart.
After this Dr.Nemur took him to a convention to show him off to the world so he would be proud and he wanted to get it out there so he would be the first person. To boost a persons intelligence and the reason for this is because he wanted to be famous.
After months had passed he noticed that Algernon was deteriating to how he used to be and worse he later died the following week later this started to happen to him. He stated to lose his memories and he was very mad and scared because he just gained all this intelect now hes going to lose it all.