Mysterions / The Crow Ate My Homework Alvin and Simon have a secret club dedicated to their favorite science fiction/mystery TV series, Mysterions. Theodore ends up discovering the club, and also being a fan of the show, asks his brothers to join; initially they refuse, as Theodore cannot kept a secret, and they don't want him to spread the word of their Mysterions club, but Theodore vows to keep quiet and convinces his brothers to let him join. Unfortunately, Theodore does tell Cheesy, and word soon spreads among the rest of the students at school, who eventually crash the Seville house and enter what they believe to be a Mysterions-themed party being hosted by Alvin and Simon - both of whom are furious that Theodore ruined their secret club. Simon's attempts to get the rest of the kids to follow and adhere to club rules result in a rather dull and boring club, so Simon decides to let his guard down and let the kids return to their own festivities. Wanting to go to a new water park with the rest of his family for the weekend, Alvin promises Dave to bring up his grades in school. Sure enough, after cramming in extra studying time and becoming totally emersed in his studies, Alvin miraculously receives an A minus on his test, much to his joy and delight. He races home to show Dave his grade, but the shiny clip holding his test papers attract a crow that snatches his test, and subsequently gets ripped to shreds during an ensuing fight with a falcon. Given Alvin's penchant for lying, exaggerating, and making up stories, Dave doesn't believe his claims of his high grade, or the crow stealing his test, and grounds him for the weekend while he takes his brothers to the water park. Depressed and heartbroken, Alvin harasses Miss Smith to vouch for him to Dave, and she does eventually agree to take him to the water park, if only to get him off her back.