When Mark and Hank travel for their uncle's funeral, Hank gets in trouble with the TSA for carrying an unusual amount of hot dogs, while Mark puts his piloting skills to the test after incapacitating the real pilots. Meanwhile, David babysits Aiden and Ava to convince Andrea to get her IUD removed.

Mark, trying to prove to Tammy that he can get babies to like him, writes a hit song that becomes the next Baby Shark. He enlists his family and neighbors to join his management team, putting these relationships to the test during his meteoric rise and humiliating fall. Meanwhile, David tries to capitalize in Mark's wake by resuscitating his old and out of touch climate change educational magic act.