Here's a brief summary and some key points you could explore in a paper about this episode:
The episode kicks off when Mary Cooper catches Missy reading an "inappropriate" magazine. To deflect trouble, Missy rats on Sheldon’s comic book collection. Mary is horrified to find a copy of Watchmen featuring Dr. Manhattan—the "blue man" from the title—and immediately bans Sheldon from reading "mature" content. young sheldon s01e18 aac